Wales captain Alun Wyn Jones will undergo a scan after injuring his shoulder in his side's Test against France on Saturday.
Jones' British and Irish Lions tour is in the balance as he is set to have a scan on the shoulder injury he sustained during their Six Nations defeat to France in Paris, according to the BBC.
The talismanic forward looked in pain after hurtling into a ruck during the second half at the Stade de France. Jones tried to play on but was eventually substituted in the 51st minute to be replaced by Luke Charteris.
Lions head coach Warren Gatland names his squad for the New Zealand tour on 19 April and will no doubt be sweating on the results of the scan due in the next few days as his skipper faces a race against time to be fit.
The 31-year-old lock will definitely miss the Ospreys' Challenge Cup quarter-final with Stade Francais on April 2.
Jones, who led the Lions in the final Test of their 2-1 series win over Australia in 2013, has been the clear favourite to resume the captaincy role despite Wales' poor form.
Gatland may now be casting his eye to Welsh flanker Sam Warburton or England's Dylan Hartley to take over the skipper duties, following both men's impressive performances in the Six Nations campaign.