With 24 bookings in two-and-a-bit seasons, moody Chelsea striker Diego Costa is used to living on the edge in English football.And nowhere is his brittle temperament seemingly put to the test more than in matches against Liverpool.A stamp on Emre Can that earned Costa a retrospective three-match ban. The numerous bust-ups with Martin Skrtel. The forehead-on-forehead confrontation with Steven Gerrard. It doesnt take much to rile Costa but theres something about Liverpool that really fires up the often-pilloried Spain international.So expect plenty of scrutiny on Costa when the two teams meet in the latest Friday-night fixture in the English Premier League, which is the highlight of the fifth round of games.The debate is on regarding Costa: Will he finish the season with more goals than yellow cards? Its a close-run thing at the moment.He is back to his best in front of goal, netting four goals in four games in Chelseas unbeaten start to the league campaign that has seen the team earn 10 points from a possible 12. In the 2-2 draw against Swansea on Sunday, Costa scored both of Chelseas goals and was almost impossible to keep down.Costa is also keeping match officials busy by getting three yellow cards, and ran the risk of seeing those turn into red with a studs-first challenge against West Ham and by throwing himself theatrically to the ground against Watford and Swansea.Costa, put simply, is never far from a flashpoint.If you are in a friendly-game mood then you have no chance, Liverpool manager Juergen Klopp said of Costa. He is a real warrior on the pitch.Theres rarely a news conference with Chelsea manager Antonio Conte that doesnt involve a line of questioning on Costa. Conte says the striker is targeted -- and it is easy to see why given Costas inability to resist reacting to goading by opposition players.Diego is growing in these situations -- in the last game he showed great attitude, Conte said Thursday. He is passionate but I?want him to put his passion into the football in the right way.Its one of the many subplots in what could be a thrilling game under the Stamford Bridge lights, considering the start to the season made by Chelsea and Liverpool.Liverpool has scored four goals in each of its wins over both Arsenal and Leicester, and also gained a point from a draw at Tottenham. Aside from a disappointing 2-0 loss at Burnley, Klopps side has been impressive -- especially the fluid forward line of Philippe Coutinho, Roberto Firmino and new signing Sadio Mane.Only Manchester City, which has won all four of its games, has more points than Chelsea so far this season.And if Costa shows passion on the field, Klopp and Conte are possibly the most animated Premier League coaches on the touchline. Like in last weekends Manchester derby when Pep Guardiola and Jose Mourinho went head to head, there could be as much focus on the coaches technical area as on the field at Stamford Bridge.Here are some other things to watch out for this weekend:---LUIZ STARTSDavid Luiz will make his first appearance in his second spell at Chelsea after Conte confirmed Thursday that the Brazilian will replace injured John Terry at center back.Terry hurt his ankle against Swansea and was ruled out for 10 days.Luiz was signed from Paris Saint-Germain for a reported 32 million pounds ($42 million) on the final day of the transfer window, about 20 million pounds less than Chelsea sold him to PSG for in 2014.---CITYS RUNMan City puts its winning start to the season on the line at home to Bournemouth, having taken its run of successive victories to seven by beating Borussia Moenchengladbach 4-0 in the Champions League on Wednesday.Pep Guardiola still hasnt tasted defeat as City manager.After his hat trick against Moenchengladbach, Sergio Aguero drops out of the team for Saturdays match. He is serving the second match of a three-game domestic suspension for elbowing an opponent.---OTHER GAMESManchester United manager Jose Mourinho will hope a Europa League match at Feyenoord on Thursday doesnt take too much out of the team for a Premier League match at Watford on Sunday.Also Sunday, its: Tottenham vs. Sunderland; Crystal Palace vs. Stoke; and Southampton vs. Swansea.On Saturday, its: Hull vs. Arsenal; Leicester vs. Burnley; West Bromwich Albion vs. West Ham; and Everton vs. Middlesbrough. Cheap Authentic Jordans From China . LOUIS -- Rookie Tavon Austin has missed another day of practice, lessening the odds hell be ready for the St. Wholesale Authentic Jordans .J. Ellis hit two-run homers and the NL West champion Los Angeles Dodgers defeated the San Diego Padres 4-0 Saturday night. http://www.cheapjordansusa.com/ . With Parker having a quiet game for once, Nicolas Batum and Boris Diaw provided the scoring as France won its first major basketball title by beating Lithuania 80-66 on Sunday. It was a victory that ended a decade of frustration for Parker and a talented French generation, which lost the final against Spain two years ago and took bronze in 2005. Cheap Jordans Usa . By having more great seasons. Manning was the only unanimous choice for the 2013 Associated Press NFL All-Pro team Friday. Cheap Jordans Online Usa . Bryzgalov stopped 25 shots on Saturday in the Oklahoma City Barons 4-1 victory over the Abbotsford Heat. The Oilers signed Bryzgalov to a one-year $2 million contract last Friday after shedding payroll by dealing defenceman Ladislav Smid to the Flames. ESPN Chalks Vegas experts are here to provide analysis and best bets for all Week 7 games, including Sundays Buffalo-Miami matchup.Note: All odds courtesy of the Westgate Las Vegas SuperBook as of Friday morning.Home page for all Week 7 gamesMatchup: Buffalo Bills at Miami DolphinsSpread:?Opened Buffalo -2.5 (-120); now Buffalo -3 (EVEN) Total: Opened 44.5; now 44 PickCennter public consensus pick: 75 percent BuffaloPublic perception: The public is all over the Bills.dddddddddddd The Dolphins are coming off their upset of the Steelers, but the Bills have won and covered four in a row.Wiseguys view: The sharps ' ' '