Zenit St Petersburg coach Luciano Spalletti has joined the battle for Fiorentina star Stevan Jovetic.

Jovetic has emerged as a top January target for Chelsea owner Roman Abramovich, which has kicked Fiorentina into action over offering him new terms.

Negotiations are underway over a new contract, but the Viola know they cannot match what Chelsea - and Zenit - can offer the player.

Jovetic's agent cannot rule out a move away when the winter market opens.