Thompson was assigned to AHL San Antonio on Friday.
Head coach Mike Yeo has stated many times that he believes the 19-year-old would benefit most from a full season of pro hockey -- something he likely can't receive in the NHL at this time. Therefore, Thompson's stint in the big league likely had an unspoken end date anyway -- whenever Alexander Steen (hand) returns to the lineup. While Steen is still a few days from returning, Yeo likely already made up his mind that Thompson would be best suited playing in the AHL right now after he posted a minus-3 rating and zero points through four games, while logging just 10:05 of ice time per game. Samuel Blais was called up to fill Thompson's roster vacancy.