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. Carl Banks Womens Jersey . Supported by three-run homers from Jayson Werth and Wilson Ramos, the young right-hander went seven strong innings in the Washington Nationals 8-4 victory over the Arizona Diamondbacks on Friday night. Eli Manning Jersey . Hey!" 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Imrul Kayes said that the 121 against England in the Fatullah practice match will strengthen his case for a place in Bangladeshs playing XI for the first ODI on Friday.He was dropped after making 37 in the first game against Afghanistan last week which, he said, made him understood what he has to do to keep his place.Imrul, a regular opener, was made to bat at No 3 against Afghanistan and though he was hitting the ball nicely, he did not last too long and subsequently lost his place. Soumya Sarkar, however, continued as Tamim Iqbals opening partner despite making 31 runs in that ODI series. With Bangladesh having decided that Sabbir Rahman will be their No. 3 against England, Imrul and Soumya are contesting a single opening slot. Both were sent to open in Fatullah in this practice game in what turned out to be a bat-off.There is a lot of competition for places in the Bangladesh team, Imrul said. You have to do something extraordinary to stay in this team. You cant stay if your performance is average. I played the first ODI but was left out for the next two and I felt that maybe I need to do something better, which is why this innings feels really good.It was not an international match but the atmosphere was similar. I needed an innings like this after a long ttime.dddddddddddd. It is definitely a big confidence boost to score a century against a team like this.In Fatullah, Imrul was unusually attacking during his 91-ball innings. He started off with a flurry of boundaries before seeing Soumya beaten by Chris Woakes pace in the fifth over. He continued the attack, and reached his hundred off just 81 balls.He has credited coach Chandika Hathurusingha, who told him to be in a frame of mind in which he is ready to play shots square of the wicket on both sides. According to Imrul, the changed mindset kept him alert to put away every bad delivery. With plenty on offer, he struck 11 fours and six sixes.The mindset was very important. My mindset in the last few matches was to stay at the wicket. Today I was positive from the start and I connected well with the first ball. In the last two days the coach gave me some very good advice which helped.He told me to be prepared to play the cut and pull, and then maybe take singles off good balls. Your body will always be positive and you will react quickly. I practised that in the last two days, so for that my balance, everything was positive, he said. ' ' '