Jonathan Calleri has been in fine form this season.
Chelsea are weighing up a move for highly-rated Argentine striker Jonathan Calleri, sources have told ESPN FC.
Calleri, 22, is seen as one of the best young strikers in South America and has impressed at Boca Juniors since joining from Club Atletico All Boys in 2014.
He has scored 21 goals and provided 11 assists in all competitions this season.
Sources have already told ESPN FC that Chelsea are looking for striking reinforcements in January, and scouts reportedly watched Calleri in action in this…