PITTSBURGH -- Pittsburgh Steelers coach Mike Tomlin understands the negativity associated with a four-game slide and stressed his underachieving team would do its best to absorb it and move forward.Its a path theyll have to travel without Cam Heyward. The defensive end and co-captain is out for the rest of the season with an upper-body injury suffered in Sundays loss to Dallas.Heyward posted a message on Instagram on Tuesday afternoon indicating his 2016 season is over.My role will change as I can not play but it will not change the goals the team has set out, Heyward wrote .Maybe, but the loss of their most consistent defensive player will make achieving those goals far tougher.While Heyward didnt specify the exact nature of the injury, Tomlin described it as a pectoral or chest problem. Heyward was examined on Monday and received a second opinion on Tuesday before making the announcement.My patience will be tested, but I look forward to 2017, Heyward wrote. My hand will remain in the pile no matter what!The loss of Heyward deals Pittsburghs already struggling defense with another significant blow. He missed the first two games of his six-year career in October when he tweaked his left hamstring in a win over the New York Jets on Oct. 9.The Steelers run defense collapsed without Heyward, giving up 204 yards to Miamis Jay Ajayi and 127 to New Englands LeGarrette Blount , games that started a midseason swoon.Heyward returned against Baltimore on Nov. 6 and the defense seemed to make significant strides against the Ravens and held Dallas rookie Ezekiel Elliott largely in check last Sunday before giving up a pair of touchdown runs in the final two minutes of a 35-30 setback that left Heyward fuming and led quarterback Ben Roethlisberger to call out some of his teammates for a lack of discipline.Not exactly the kind of chatter the Steelers expected to be generating in mid-November.Tomlin understands the frustration of his players. At the same time, he believes emotions are not as important as results.Were not doing enough of the good things well enough to win on a consistent basis, Tomlin said. Weve got to change that. We still feel very comfortable that were capable of being a good football team. But those (hurt) feelings are less important ... than wins.A feeling the Steelers havent experienced in more than a month. While a potential reprieve awaits at winless Cleveland (0-10) on Sunday, the way Pittsburgh has played of late -- particularly on the road, where it is 1/3 -- doesnt exactly have Tomlin brimming with optimism.This is the third losing streak of at least four games during Tomlins tenure. The Steelers dropped five straight in 2009 and four straight in 2013. Both years Pittsburgh failed to make the playoffs.Missing out on the postseason seemed farfetched during a 4-1 start, but the Steelers have been so lifeless, careless or both recently that sitting at home in mid-January has become a very real possibility.The tape says there are not enough people doing the right things on a consistent basis, Tomlin said.A couple of his stars included. Though wide receiver Antonio Brown caught 14 passes for 154 yards and a touchdown against the Cowboys, he also was meekly pushed out of bounds at the Dallas 20 on the games final play rather than flipping the ball back into the field hoping for an unlikely score.Tomlin understands the odds of the ball somehow winding up in the end zone following a series of laterals are slim. Slim, though, is better than none.At the end of the game Id like to see us stay inbounds and see us fight and claw and scratch, Tomlin said.Something Pittsburgh will try to do without Heyward, who has embraced the role as the vocal leader of a defense in transition. Its telling both of Heywards effort and Pittsburghs issues getting to the quarterback that his 3.0 sacks lead the team even though he missed two full games and the part of another.My support for this team will only grow, Heyward wrote, and I look forward in watching this team grow and fight on.Game notes LB Steve Johnson (ankle) was placed on injured reserve. Pittsburgh added linebacker L.J. Fort to the 53-man roster. ... WR Darrius Heyward-Bey (foot) is out against the Browns. ... The availability of WR Markus Wheaton (shoulder) will be determined later in the week.---For more NFL coverage: www.pro32.ap.org and www.twitter.com/AP-NFL Kyle Turris Jersey . The parade and rally were held to celebrate the Saskatchewan Roughriders 45-23 win over the Hamilton Tiger-Cats on Sunday in the CFLs championship game. Ryan Ellis Predators Jersey . And when it opened, every player was at his stall. Thats a sure sign that a team is in a slump and is searching for answers. "Its embarrassing to be at home and play the way we did," said defenceman Josh Gorges. http://www.authenticpredatorspro.com/Dan-hamhuis-predators-jersey/ . The catch: It needs a lot of money, and it needs it fast. Miikka Salomaki Predators Jersey . Perhaps Carroll was so prepared for a break because he believes there is very little the Seattle Seahawks need heading into the off-season. "I dont see anything that we need to add. We just have to get better," Carroll said. Colton Sissons Jersey . Vettel was 0.168 seconds faster than Red Bull teammate Mark Webber around the Suzuka circuit. Mercedes driver Nico Rosberg was two tenths of a second off Vettel. "The car balance is decent, but I think we can still improve," Vettel said. Trainer John Moloney is hoping Liberty Song has more luck at Ballarat than he did at his previous start.Liberty Song heads to Ballarat for Saturdays $100,000 Magic Millions 3&4YO Classic (1100m) after a fast-finishing fifth at $101 in a 1000m sprint for three-year-olds down the straight at Flemington on November 1.On that occasion. Liberty Song struck traffic at a crucial stage before finishing well.It actually still looked like he had a bit more to give because he was looking for clear running, Moloney said of the colts Flemington run.I dont know how much quicker he could have gone but it was a pretty sharp effort to do what he did.He meets the impressive winner of that race, the Darren Weir-trained Speedeor, again on Saturday.Depending on how he performs in his next couple of starts he could earn a crack at the $1 million Magic Millions Guineas (1400m) at the Gold Coast in January.Liberty Song was ssuccessful at Pakenham in his season return and has won two of his eight starts.ddddddddddddIts not a bad race on Saturday, Moloney said.Theres a couple of handy ones in there with Speedeor and the filly of Mick Prices (Secret Agenda) but hes got a good barrier draw (3) which should help him get a nice run.If he gets cover and a chance to sprint, Im sure he could make his presence felt.Moloney said Liberty Song would need to prove to him he could be effective at 1400m before he decided on a Magic Millions Guineas mission.The Caulfield trainer already has the filly Flying Jess aimed at the $2 million race.Speedeor is the $2.70 favourite to win his third race in a row while dual Group Three-winning filly Secret Agenda is at $3 in the field of nine with Liberty Song is at $17. 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