Group stageWednesday Chelsea    vs    Shakhtar Donetsk21:00 SS3Benfica    vs    Spartak MoskvaCeltic    vs    Barcelona         21:00 SS7BragaSC     vs     Man United      21:00 SS3Juventus      vs    NordsjællandValencia     vs    BATE Borisov Bayern     vs     Lille          21:00 SS6CFR Clu    vs      Galatasaray LONDON - Captain John Terry will be back to plug Chelsea’s porous rearguard on Wednesday when the holders bid to avenge last month’s defeat by Shakhtar Donetsk and wrest back control of Champions League Group E.The Londoners shipped 10 goals in the four games that centre half Terry missed after he was suspended for racially abusing Queens Park Rangers defender Anton Ferdinand."John is an important player for us for sure and a fantastic defender and when he plays he always does very well,” coach Roberto Di Matteo told reporters last week."The other players have done fantastic jobs when they have come in but certainly JT is a player that we miss.”Terry and his fellow defenders will need to be at their best against a classy Shakhtar side who gave Chelsea the run-around for long spells to win 2-1 in Ukraine two weeks ago.Di Matteo’s team started the season in sparkling fashion, winning seven of their opening eight games in the Premier League, but confidence has taken a knock since the defeat in Shakhtar.Chelsea went down 3-2 at home to Manchester United five days later before they turned the tables on their Old Trafford rivals by beating the former European champions 5-4 in a League Cup thriller at Stamford Bridge on October 31.Di Matteo was then without Terry, Frank Lampard, David Luiz and Juan Mata for last Saturday’s disappointing 1-1 draw at Swansea City that meant Chelsea were knocked off the top of the Premier League table by United.Spanish playmaker Mata has been in good form this season alongside midfield newcomers Oscar and Eden Hazard and he is the club’s leading scorer with seven goals.Romanian coach Mircea Lucescu rested several players as runaway leaders Shakhtar made it 14 wins from 14 games this season in the Ukrainian league by beating Metalurg Zaporizhya 2-0 on Saturday.Influential Brazilians Luiz Adriano, Willian and Alex Teixeira started on the bench but all came on with 30 minutes to go."It was very important for those three to have some game time,” said Lucescu after his side chalked up a 30th victory in a row in their domestic league.