Wes Hoolahan and Tyrone Mears will stay with the Baggies until the end of the season after signing fresh terms at The Hawthorns.
Both were signed in the summer on free transfers with their contracts set to expire at the end of January.
Hoolahan is yet to start a league game for Albion but has made five appearnces from the bench. He has started twice in the FA Cup and once in the League Cup for Albion.
Mears, who will celebrate his 36th birthday this month, has started four times for Albion, making another three appearances in the league. He has also started twice in the League Cup and once in the FA Cup.
Baggies boss Darren Moore was pleased to extend the stay of the two experienced pros. “Both have been an absolute credit to themselves and played a big part in where we are at this point in the season," he said.
“Not just out on the pitch but in the dressing room and in training - they have bought into the culture of unity we have been developing and have been a great influence around the squad.
“It’s a win-win for all. We were all very pleased with the performances of our younger players at the weekend but you cannot underestimate the value of experience in those circumstances either.”