Celtic could face a fight to sign Stuttgart striker Danijel Ljuboja with several English clubs tracking him.
Ljuboja looks set to leave Stuttgart after falling out with club officials earlier this summer.
The news has alerted several clubs to Ljuboja's possible availability and a number of sides are weighing up a move for the forward before the transfer window slams shut next week.
Celtic are keen on Ljuboja as they look to bolster their attacking options, but the player's agent Alex Kristic revealed there is also interest from England in the Serbian international.
"It is true that Celtic are interested in Danijel," Kristic told skysports.com.
"There are also some English Premiership clubs keen on him.
"There is a real possibility he could leave Stuttgart and we will know more in the next few days."
Bolton are thought to be one of the English clubs keeping tabs on Ljuboja.