Sam left their training camp early to “return home for personal reasons,” according to a statement from the team.
No other details were offered about his absence.
The team has since played its first game of the season without Sam.
But rumours started circulating Thursday that Sam has returned to Montreal from his hometown of Galveston, Texas.
Charles Rooke, the Alouettes’ Director of Communications, could not confirm if Sam is in the city but said that he was due to return.
Rooke suggested that a place on the team is awaiting Sam when he returns.
“There’s always a way to move around the roster.”
Sam rose to prominence as the first openly gay football player to be drafted to the NFL.
He faced both applause and backlash for widely-broadcast footage of him kissing his boyfriend in reaction to his successful draft.
Sam then signed a two-year contract with the Alouettes in May, but hasn’t yet played a match with the team.