That was scary.
Shortly before the 49ers went into halftime of their season-opening game against the Arizona Cardinals holding a 13-10 lead, All-Pro tight end George Kittle hobbled into the locker room with an apparent leg injury.
Kittle sustained the injury while being tackled by Cardinals safety Budda Baker on San Francisco's final drive of the half. Kittle immediately grabbed his left knee upon being taken to the ground.
Kittle went directly to the sideline and was being attended to by trainers before he walked into the locker room under his own power.
Kittle led San Francisco with four receptions for 44 yards in the first half. He also added nine yards on the ground. He rejoined the 49ers on the sideline for the start of the second half and was on the field for their first drive.
That's the sound of 49ers fans breathing a sigh of relief.