Harlequins have been hit by what looks like two season ending injuries, despite the Premiership season being several weeks away.
Wallace will undergo surgery next week and following this, a more accurate assessment will be given on his expected return to play.
Academy winger Jonas Mikalcius underwent surgery last week for a multi-ligament reconstruction of his left knee, which included his ACL, as a result of an injury sustained in the recent Premiership Rugby Singha 7s Series. The winger will be out of action for the entire 2017/18 season.
“We are all wishing Luke and Jonas the very best for their recovery,” Harlequins Director of Rugby John Kingston said. “The road back to full fitness will be a long one, but they are both very resilient characters and I know they will be determined to do all that they can to come back stronger.”
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