Guenther scored a power-play goal on five shots and added an assist in Sunday's 5-4 shootout win over the Capitals.
Guenther scored the game-winner in overtime during Thursday's 3-2 victory over the Blue Jackets.
Guenther netted two goals, including the game winner, added an assist and took six shots on target in Tuesday's 3-2 overtime victory against the Flyers.
Guenther (lower body) will return to the lineup for Tuesday's home game against the Flyers, Cole Bagley of KSL Sports reports.
Guenther (lower body) is regarded as day-to-day, per Cole Bagley of KSL Sports on Wednesday.
Guenther (lower body) was placed on injured reserve Tuesday, according to the NHL media site.
Utah HC reported Friday that Guenther is out indefinitely with a lower-body injury.
Guenther scored a goal on six shots in Saturday's 4-3 win over the Sharks.
Guenther scored two power-play goals and added an even-strength assist in Saturday's 6-1 win over the Penguins.
Guenther logged an assist and three shots on goal in Friday's 4-2 loss to the Golden Knights.