Sky Sports understands that West Ham United are the latest club to take a look at Bosnia international Zlatan Muslimovic.
Zlatan Muslimovic's agent has confirmed the Bosnian forward spent Tuesday training with Sunderland.
Sky Sports sources understand Enoch Balotelli - younger brother of Mario - is one of two new forwards on trial at Sunderland.
Rangers manager Ally McCoist is running the rule over Bosnia international striker Zlatan Muslimovic as he looks to bolster his squad.
Blackpool are keen on Bosnian international forward Zlatan Muslimovic, skysports.com understands.
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