Chelsea are plotting a bid for River Plate defender Eder Balanta, [football] direct news understands. The highly-rated 21-year-old is on the title challengers’ radar according to a source close to Stamford Bridge, but the Blues are aware of the fact that they face stern competition from La Liga heavyweights Barcelona. Last month the Colombia international indicated he would be open to a move to the Catalan giants at the end of the campaign, telling Spanish news agency EFE: “Barca want to sign me? Hopefully… I’d be delighted to play at Barcelona.”Barca have also made no secret of their desire to recruit at least one centre-half this summer, in light of skipper Carlos Puyol’s decision to depart the Nou Camp upon the conclusion of the current season. The Chelsea insider told FDN that boss Jose Mourinho and his staff aim to generate more competition for places in the upcoming transfer window, particularly in defensive positions. Watch Arsenal v Man City Saturday or Liverpool v Tottenham Hotspur, Sunday. 24 hour Sky Sports day pass for only 9.99. No contract.