MELBOURNE, AUSTRALIA - MAY 27: Sean McMahon of the Rebels leaves the field injured during the round 14 Super Rugby match between the Rebels and the Crusaders at AAMI Park on May 27, 2017 in Melbourne, Australia. (Photo by Scott Barbour/Getty Images)
MELBOURNE, AUSTRALIA - MAY 27: Sean McMahon of the Rebels leaves the field injured during the round 14 Super Rugby match between the Rebels and the Crusaders at AAMI Park on May 27, 2017 in Melbourne, Australia. (Photo by Scott Barbour/Getty Images)