Trinidad & Tobago international Radanfah Abu Bakr is on trial with MLS expansion franchise Philadelphia Union.

The 23-year old defender from T&T Pro League club Caledonia AIA has been shortlisted on a Union pre-season roster and is attempting make the full senior playing list for the upcoming 2010 season, which kicks off tomorrow night between the Union and Seattle Sounders at Qwest Field.

Abu Bakr had a loan spell with English Championship club Swansea City last year and has represented the T&T national team on eight occasions.