Joining the team on Monday, Donald had just four days before the Chiefs season-opener against the Highlanders in which he played 20 minutes off the bench at fullback in a losing effort.
"Only coming in on Monday, it's not ideal preparation for the Super Rugby season, but hopefully I get better and get a few Ks in the legs and stuff like that," he said after the game.
"It's great to be back here, and obviously a hell of a shock to the system considering where I think my headspace was two weeks ago – it certainly wasn't about round one here at Waikato Stadium."
Donald was greeted with loud cheers from the crowd at Waikato Stadium, though his slick new haircut became a talking point among many fans.
After getting advice from some of the younger members of the team on the best barber around, his new look provided some amusement for teammates.
"Unfortunately it looks like now I'm a Peaky Blinder," Donald said. "The boys enjoyed that when I unveiled it. Obviously just trying to keep up with the young kids these days and yeah, you've got to be careful what you ask for at the barber."