DUNDEE UNITED No.2 Peter Houston has challenged Greg Cameron to win back his place in the team.
Cameron, 19, returned to Tannadice on Monday following a month's loan at Partick Thistle and faces fierce competition for a midfield place.
Cameron found his top-team chances limited last season following the arrival of boss Craig Levein but Houston said: "Greg has come back to us now after doing very well during his time on loan.
"We've told him he must look to dislodge Mark Kerr, Morgaro Gomis and Prince Bauben and he's up for it.
"He's a good young player and going on loan was a good option since he's kicked on a bit.
