Westerman first signed for the Black & Whites back in 2011, with Hull paying out one of their highest ever transfer fees to secure the signature of the 2007 Super League Young Player of the Year.
The loose-forward would spend the next five years in East Yorkshire, with 2014 being arguably his best season to date, winning the Hull FC Player of the Year Award and representing England in the Four Nations.
After 126 appearances for the club, he departed for Warrington at the end of the 2015 season. Westerman appeared in the 2016 Cup Final against the Black & Whites, ultimately ending up on the wrong end of the scoreline as his former employers ended their Wembley hoodoo.
But after a short spell at Tornoto Wolfpack at the start of the 2018 season, he returns to Hull FC looking to kick on from where he left off.
Community Club: Lock Lane