Bournemouth goalkeeper Asmir Begovic believes Chelsea will miss Diego Costa.
Begovic reckons the temperamental Spaniard will be a tough man for his former club to replace.
Chelsea have agreed terms with Real Madrid for striker Alvaro Morata.
But Cherries signing Begovic said: “Diego is a top player and a world class striker.
“He guarantees you 20-odd goals every season when fit and players like that don't come around very often.
“He is also an infectious character in the dressing room so he would be a big loss if he did leave."