Shakhtar Donetsk director Darijo Srna was spotted at Stamford Bridge as Chelsea try to hijack a move for Arsenal target Mykhailo Mudryk.
The pursuit of the 21-year-old Ukrainian is hotting up after Srna was earlier pictured getting coffee with ex-Arsenal striker Eduardo, and Willian who played for both clubs.
Ukrainian side Shakhtar are expected to reject Arsenal's improved bid for star winger Mudryk as they look to utilise Chelsea's interest to their advantage.
In what will be a concern to Arsenal fans, Srna was seen at Stamford Bridge, sitting several rows behind Chelsea owner Todd Boehly.