Worcester Warriors will be without injured duo Leonardo Senatore and Dean Hammond over the coming weeks as they fight for survival.
The Premiership's bottom club have six games left to avoid relegation but suffered a double injury blow in their crushing 21-20 loss to Harlequins last Saturday.
Worcester led 13-0 at half-time and seemed destined to secure the first win of the season, only for Harlequins to rally in the second half.
In the process they lost Argentina number eight Senatore to a shoulder knock and Hammond to a hamstring injury, with boss Dean Ryan venting his frustration on Monday.
"We lost a couple of players on Saturday. Leonardo went off with a dislocated shoulder and Dean played the last 10 minutes with a torn hamstring," Ryan told Worcester News.
"That was up against one of the fastest back threes I've ever seen, so we're hurting a little bit.
"The boys have got a bit of time off this week - it's the right time to get away and then we'll throw everything at Wasps back at Sixways and see if we can get something."