HITC Sport understands a number of clubs are tracking former Hull defender.
Crawley Town defender Sonny Bradley is a target for a number of clubs on a free transfer this summer, HITC Sport understands from sources close to the club.
Bradley is out of contract at Crawley at the end of the season and could leave the League Two club on a free transfer in the summer.
The left-sided central defender has been an ever-present for Crawley this season and Bradley has impressed for the Red Devils so far this term.
Bradley's performances have not gone unnoticed by clubs higher up the football pyramid with his suitors aware the 6ft 5in defender could be a bargain free transfer in the summer.
Despite being only 24 Bradley has made over 150 appearances during his career and he is regarded as one of the best centre-halves in the Football League.
Bradley began his career at Hull City and had two separate loan spells at Aldershot Town, making 56 league appearances for the Shots when the Hampshire side were in League Two.
He only made two senior appearances for the Tigers before moving to Portsmouth in the summer of 2013 and then onto Crawley the following year.