Shakhtar Donetsk sporting director Darijo Srna was spotted in Chelsea owner Todd Boehly's box at Stamford Bridge, further fuelling suggestions the Blues could win the race for Shakhtar winger Mykhaylo Mudryk.
Mudryk has been courted by Arsenal, with the Gunners seeing two bids knocked back for the Ukrainian international. However, with Mikel Arteta's side falling short of Shakhtar's hefty asking price, Chelsea have joined the chase.
Srna was spotted in London having dinner with former Arsenal and Shakhtar duo Eduardo and Willian during the week, before heading to Stamford Bridge on Thursday night. The Croatian, who played with Eduardo and Willian in Ukraine before hanging up his boots watched on as Chelsea were beaten 1-0 by Manchester City to fall further adrift of the Premier League's top four.