Front-rowers Ben Moon, Carl Rimmer and Shaun Malton all extend their contracts at Premiership side Exeter Chiefs.
A James Short hat-trick for Exeter against Worcester sees the Chiefs move level on points with Saracens in second.
Exeter lock Jonny Hill is banned for two weeks by the Rugby Football Union following his sending off against Wasps.
Exeter head coach Rob Baxter says it was not surprising that only three of his players have featured in the Six Nations.
Audio & Video
England wing Jack Nowell has his rat-tail cut by Exeter team-mate Henry Slade after a pact with fellow Chiefs wing Matt Jess.
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