Hammond told the club website: “Murts, Marcus and Glen are important players for us and we want to keep them.
“In the opening three months of the season Marcus and Murts have amply demonstrated their ability to perform at a high level in the Premiership.
“Glen had a quiet start to the season due to injury, but since returning to the team in recent weeks his performances have been excellent.
“We want the three of them to stay beyond the end of this season so I will be holding talks with the players and their representatives soon.”
