Arsenal have reached an agreement with Chelsea over the transfer of England forward Noni Madueke.
The Gunners were reported to have agreed personal terms with the winger over the weekend, with a five-year contract thought to have been agreed on.
Arsenal then contacted Chelsea ahead of attempting to agree a fee for the 23-year-old, and a £52million agreement how now been reached.
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.