Arsenal have made contact with Chelsea over the potential signing of winger Noni Madueke.
The Gunners were reported to have agreed personal terms with the England international over a five-year contract over the weekend.
Arsenal have now contacted Chelsea ahead of attempting to agree a fee for the 23-year-old.
Madueke, 23, was a first-team regular at Chelsea under Enzo Maresca last season.
He featured in 32 of Chelsea's 38 Premier League games - starting in 27 of them - and provided seven goals and three assists.