Arsenal have already seen two bids rejected by the Hammers.
Manchester City have formally entered the race to sign West Ham midfielder Declan Rice.
The Premier League champions are understood to have submitted a bid worth up to 90-million pounds.
Arsenal have already seen two bids rejected by the Hammers.
City are searching for midfield options after the departure of Ilkay Gundogan (pr: gun-do-wan) to Barcelona.