STANFORD, Calif. -- David Shaw swears he understands. Shaw, the Cardinal head coach, knows theres a limit to how many times junior Christian McCaffrey can take the ball and be effective. The latest test comes Friday night, when the No. 7 Cardinal play at No. 10 Washington (9 p.m. ET, ESPN).He cant take every single rep and be able to survive a 13-, 14-game season, Shaw said. He cant. Even at that age, in the best shape of [his] life, and a phenomenal athlete, probably one of the best-conditioned athletes in the nation. Somebody else has to take some reps.Over the course of McCaffreys record-breaking 2015 season, the running back carried, caught or returned the football 424 times. Thats 30.3 times per game, way more than any other FBS player in the nation. It worked out pretty well for him. He broke the single-season all-purpose yards record (3,250) set by Barry Sanders in 1988. McCaffrey finished with 3,864 yards.When Shaw and offensive coordinator Mike Bloomgren stand on the sideline and look down at their call sheets, they seem to become every 10-year-old who ever ripped open a one-pound bag of M&Ms. How do you stop?It takes a concerted effort among the coaches, Bloomgren said. If we say, Who is the best for this [play]? It usually comes up being 5 (McCaffreys number). You have to be really careful. If we put 25 pounds on him, Id probably play him at guard. At the same time, we say it every time we watch a game. Hey, he played X number of plays. And its too many.Three games into his junior year, McCaffreys workload has ticked upward -- 32 times per game. He has 79 carries, 12 receptions, three kick returns and two punt returns for a total of 635 yards (211.7-yard average). The 91 carries and catches are 59.9 percent of Stanfords total this season. Thats 13 percentage points higher than the second-biggest ball hog in the FBS, Donnel Pumphrey of San Diego State.OK, its not fair to call McCaffrey a ball hog. He isnt calling plays. And in Shaws defense, sophomore running back Bryce Love missed the opener against Kansas State, and quarterback Ryan Burns played little before winning the starting job in August.We live in an age of specialization, with personnel groups shuttling on and off the field every down. Yet McCaffrey is as evergreen as the tree in the Stanford logo. How much is too much? What is the limit?The Stanford coaches dont think in numbers. Shaw mentioned 25 carries, give or take. He checks the halftime stats to see if McCaffrey has too many touches, or too few.The other thing thats hard? Bloomgren said. The kid doesnt want to be out of the game a single play. If he were asking, Can I get a break? that would make it so much easier for all of us. But hes the last one that wants to take a play off.McCaffrey dismisses the pitch count, too, although he said the USC game, when he had 31 carries, three catches and a kick return, has been the toughest to recover from.Sometimes youll have 30, 40 touches in the game, and youll feel better than if you had 22, he said. It depends on where you get hit and how you get hit.McCaffrey expected his workload to increase this season. He is playing more as a slot receiver, hoping to get one-on-one with some poor linebacker unable to match his rare combination of speed and strength. Shaw stressed the difference in McCaffrey between last season and this, the physical maturation of a 19-year-old who turned 20. But theres also a big difference in his preparation.McCaffrey assesses the condition of his body with the care of an NFL veteran, spending a total of three to four hours before and after practice to prepare for and recover from the workload. Foam rollers, stretches, Pilates, one minute in the hot pool, two in the cold, and back again for 30 minutes.Last year, I was doing stuff where I didnt know if that was necessarily the best thing for me to do, McCaffrey said. This year, OK, Im having a little bit of tightness in my adductor. I know I need to get my glutes back firing. I know my body a lot better. I can pinpoint and find exactly what I need to do.The result is a fresher back. He feels better on Monday than he did last season. He accepts that he isnt going to do much physical work on Monday. He understands that Love needs the reps.Last year, we would sit him out of practice on Mondays and he would pout, Bloomgren said. Body language. Now he understands its part of the process.As Burns matures, Shaw and Bloomgren hope the quarterback will be able to take more of the responsibility for the offense. Love has proven in the past two games that he is an effective counterpunch to McCaffrey. Until that really happens, however, Shaw said, the offensive burden is going to be on the offensive line and McCaffrey.Going into a game, I know that Im going to run a lot, McCaffrey said. I know Im going to have a lot of volume, and I know that Im going to get hit a lot, which is great. Sometimes we try to deliver some blows, too, try to break as many tackles as possible. We know its going to hurt the next day. Thats why we love the game. Custom Jaguars T-shirts . LOUIS -- Roman Polak was celebrating even before Alexander Steen scored the winning goal in Saturdays 4-2 win over the Carolina Hurricanes. Wholesale Custom Jaguars Shirts . 1 position. The Mustangs (6-0), who beat Queens 50-31 last weekend, earned 17 first-place votes and 287 points in voting by the Football Reporters of Canada. Western was last ranked first in the country in October 2011. http://www.customjaguarsjersey.com/ . It was the kind of score that might make everyone else wonder which course he was playing. Except that Graeme McDowell saw the whole thing. Crouched behind the 10th green at Sheshan International, McDowell looked over at the powerful American and said, "Ive probably seen 18 of the best drives Ive seen all year in the last two days. Custom Jaguars T-shirts . -- PGA TOUR Canada member Steve Saunders took a three-stroke lead Saturday in the Web. Custom Jaguars Jersey China . In what the team had called a retirement, Ryan said Thursday that he is resigning as chief executive of the Rangers in a move effective at the end of this month.Andy Murray will be looking to extend his winning run to 22 matches and book his place in the semi-finals of the ATP World Tour Finals when he faces Stan Wawrinka on Friday afternoon. Murray has won both of his contests thus far in the John McEnroe Group, beating Marin Cilic in straight sets and then Kei Nishikori in a three-set epic.But he could still be eliminated if he loses to Wawrinka in straight sets and Nishikori beats Cilic in the groups other match in the evening on Friday. Murray v Stan: A battle royale Expect sparks to fly at Londons O2 Arena on Friday afternoon... Murray leads the head-to-head 9-7 against the Swiss, and has his sights set on a perfect final against Novak Djokovic that would decide the year-end No 1 ranking.I think for the tournament and stuff, for everyone interested in tennis, that would probably be the perfect way to finish the year, he said. Murray talked to Mark Petchey at the SkyPad after his victory over Nishikori For me, and Im sure for Novak, both of our goals would be to try to win the event. For him, whether thats by beating me, someone else, or, for me, if its winning against Novak or another player, it doesnt change for us as players.Murray was pushed to the limit by Nishikori in the longest three-set match in ATP World Tour Finals history, which lasted three hours and 20 minutes. John McEnroe Group W-L Sets Games Andy Murray 2-0 4-1 30-20 Kei Nishikori 1-1 3-2 27-23 Stan Wawrinka 1-1 2-2 19-24 Marin Cilic 0-2 0-4 17-26 He acknowledged afterwards that he was a bit tired, but added: You tend to feel it more the following day, in terms of stiffness and soreness in the body.dddddddddddd I was in the ice bath after the match. That obviously helps make you feel a bit better. But 10-12 hours afterwards the body starts to stiffen up. Its positive I get a days rest.After losing his first match, Wawrinka kept his hopes of progressing alive with a 7-6 (7-3) 7-6 (7-3) victory over Cilic on Wednesday. Murray is one win from matching his career-best 22-match undefeated run from earlier this season, during which he won Queens, Wimbledon and Olympic gold All I know is if I want to have a chance to qualify, I need to win, he said afterwards. Thats all Im trying to do. Im going to try to play my best tennis, to beat the World No. 1. Its going to be a tough match.We played many times against each other. Hes playing his best tennis so far. Its going to be interesting. Im happy to play here in front of his home crowd. Im sure its going to be a great atmosphere.The only meeting between Murray and Wawrinka in 2016 was in the semi-finals of the French Open, with the world No 1 coming through in four sets. Watch highlights of Murrays win over Nishikori However, Wawrinka won their round-robin clash at the O2 last year 7-6 (7-4) 6-4.In the doubles match, Henri Kontinen and John Peers will be looking to make it three wins from three when they face world No 1 duo Pierre-Hugues Herbert and Nicolas Mahut.Hugues and Mahut are already eliminated after two defeats and could slip from the top of the rankings if Jamie Murray and Bruno Soares reach the final.Kontinen and Peers are already assured of a semi-final place, having won both their matches in straight sets.Watch the ATP World Tour Finals on Friday from midday on Sky Sports 1 HD or follow on www.skysports.com. Also See: One of Murrays best-ever matches Murray targets perfect final Wawrinka keeps hopes alive Stan sets sights on Murray ' ' '