Cardiff Blues and Wales winger Alex Cuthbert will miss 4-6 weeks of action after undergoing knee surgery on an injury picked up before the Cheetahs game last weekend.
Cuthbert was released by Warren Gatland to join his club side in the middle of last week, after not being included in the Wales squad to travel to Twickenham in the Six Nations on Saturday.
However, in the last training session before Cardiff Blues took on the South African side at the Cardiff Arms Park on Saturday night, the winger picked up a knee injury which will now keep him out until at least mid-March.
With the European Challenge Cup quarter-final tie against Edinburgh taking place on the first weekend of April there will now be a nervous wait for Danny Wilson over the fitness of the second highest try scorer at the club since 2003.
With Tom James currently unavailable, Matthew Morgan also in the treatment room and Blaine Scully away with the USA Eagles, Cardiff Blues will have to rely on the young trio of Aled Summerhill, Owen Lane and Rhun Williams in the back three for the time being.
Ryan Edwards is also on loan from Bristol, while Dan Fish is trying to get back to fitness after over a year out, although neither player was utilised off the bench against Cheetahs.
In better injury news it is hoped that both Kris Dacey and Willis Halaholo will be available for the away trip to Zebre the week after next, while Matthew Morgan is aiming to be fit for the home game against Ulster towards the end of March.