Chelsea and Aston Villa have been fined by Uefa for breaching the European governing body's financial rules. The two clubs could be prevented from registering new players for Uefa competitions for the forthcoming season unless they have a positive transfer balance by the end of the summer transfer window.

Chelsea has been fined $23.6 million for breaking financial monitoring rules and Barcelona ordered to pay $17.7 million) by UEFA.

Chelsea have been fined 31 million euros ($36.50 million) by UEFA for breaches of its financial rules, while Aston Villa, Barcelona and Olympique Lyonnais were also levied with large fines, UEFA announced on Friday.

Chelsea is to sign English winger Jamie Gittens from Borussia Dortmund. That's according to the German club which said that “all parties involved agreed in principle” in Florida and that contract details were being finalized.

Chelsea have agreed a deal to sign English winger Jamie Gittens from Borussia Dortmund, the Bundesliga club said on Thursday.

Chelsea have agreed a deal to sign English winger Jamie Gittens from Borussia Dortmund, the Bundesliga club said on Thursday, with the 20-year-old set to sign a seven-year contract in a move reportedly worth 55 million pounds ($75.