Leicester Tigers will be without the services of Marcos Ayerza for two weeks due to the hamstring tear the prop sustained during Argentina's World Cup campaign.
Ayerza was one of los Pumas' star performers during their run to the tournament's semi-finals but was injured in training and subsequently missed the bronze medal play-off against South Africa.
Leicester director of rugby Richard Cockerill is hopeful Ayerza will not spend too much time on the sidelines.
"We are hoping it's seven, 10 or 14 days," he told the BBC.
Ayerza will miss the Tigers' Premiership match against Exeter at Sandy Park on Saturday, 7 November.
He could return when Leicester kick off their European Champions Cup campaign against Stade Français at Welford Road on Friday, 13 November.