The Flames originally acquired Weegar from the Florida Panthers as part of the blockbuster Matthew Tkachuk trade in July 2022. Under former GM Brad Treliving, the club subsequently signed Weegar to an eight-year contract extension carrying a $6.25 million cap hit.

Weegar spent his junior career with the Halifax Mooseheads and was originally selected by the Panthers in the seventh round (No. 206 overall) of the 2013 NHL Draft. After making his NHL debut with the Panthers in the 2016-17 season, Weegar gradually established himself as a regular (and, later, a top player) in Florida.

Through 537 career NHL games with the Panthers and Flames, Weegar has collected 58 goals and 245 points, as well as 384 penalty minutes. He has also appeared in 20 playoff games, all with Florida, recording one goal and five points.

The Flames currently occupy 10th place in the Western Conference with a 32-25-11 record and 75 points through 68 games this season. They have won back-to-back games and are slated to return home to play the Seattle Kraken and Dallas Stars after wrapping up their road trip on Long Island.