Charteris blow adds to Welsh injury woes
Wales' injury-ravaged season looks to have claimed another major casualty.
He is expected to be out for the rest of this season, effectively ending his hopes of making the Lions squad to tour Australia next summer.
Jarvis, meanwhile, went off with a knee injury during the early minutes of Wales' defeat against world champions New Zealand last month.
Wales kick off their Six Nations title defence against Ireland in Cardiff on February 2.