Date of birth
Sam was Rovers' second deadline day signing in August 2017 when he joined from Liverpool for an undisclosed fee on a two-year deal.
Bolton-born, Hart came through Manchester United's Academy ranks before moving to Merseyside during the 2012-13 campaign at the age of 16.
He quickly progressed from Liverpool's Under-18s to become a regular for their development squad.
An athletic defender who loves to get forward, Hart featured for Jurgen Klopp's senior side in a pre-season friendly against Mainz last summer, before gaining valuable first team experience on loan at Port Vale.
The full-back made 16 appearances for the Valiants during his six-month stay in League One last season, scoring one goal - against his hometown team - before returning to the Reds in January.