Sky Sports understands that West Ham United are the latest club to take a look at Bosnia international Zlatan Muslimovic.
The 30-year-old has already trained with Sunderland and Rangers in the past week as he looks to secure a move to Britain.
Whilst a deal with Rangers is still an option, Sam Allardyce has now handed him the chance to make an impression at Upton Park.
Allardyce is looking to bolster his striking options in January and Muslimovic has emerged as a target.
Muslimovic is a free agent after leaving Greek club PAOK last year.