"Gotta love the Ducks!" he joked on his Instagram story. "We love them."
But, his fun demeanor quickly shifted.
"SMH," Tarek, 35, responded to one fan on Instagram who asked "Who could possibly be your favorite player?"
He responded with laughing emojis to another follower who commented that he wouldn't be rooting for Thompson.
Radar previously reported that Christina, 33, started dating Thompson, 32, after her break up with contractor Gary Anderson.
The Flip or Flop stars separated in May following an incident at their home where Tarek allegedly ran off with a gun. He filed for divorce in January 2017, but Christina has yet to respond to his petition.
"Tarek is moving on with his life and wishes her the best," a source close to the couple told Radar of the exes' current status. "He just hopes she doesn't bring 'dates' around the kids. It's not something he would do."
The couple share daughter Taylor, 6, and son Brayden, 1.
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