O'Brien was scratched Wednesday versus the Flames, the eighth time in 11 games he's sat out.
O'Brien signed a three-year contract with Utah HC on Wednesday, per Chris Johnston of The Athletic.
O'Brien scored a goal on four shots and logged three hits in Sunday's 5-2 win over the Sharks.
O'Brien notched an assist in Friday's 4-0 win over the Red Wings.
O'Brien recorded an assist, five hits and 10 PIM in Thursday's 5-2 loss to the Wild.
O'Brien logged an assist and two hits in Sunday's 5-2 win over the Capitals.
O'Brien (upper body) will return to the Coyotes' lineup Sunday against Winnipeg, Patrick Brown of the team's official site reports.
O'Brien (upper body) was placed on injured reserve Friday.
O'Brien is considered day-to-day with an upper-body injury and won't play Wednesday versus the Wild.
O'Brien notched an assist and four hits in Monday's 5-2 win over the Penguins.