Autumn internationals: Wales call up teenager Hallam Amos to face Tonga in 11 changes

Wales have made 11 changes for what will be Warren Gatland's 100th match as an international coach against Tonga at the Millennium Stadium on Friday, with Newport Gwent Dragons wing Hallam Amos making his debut and Ryan Jones replacing Sam Warburton as captain.

Injuries have forced Gatland's hand to some degree, with centre Cory Allen and wing Scott Williams both ruled out following injuries picked up in the 40-6 win over Argentina on Saturday. But Gatland has been true to his word of rotating his fly-halves, with No 10 James Hook making his first start for Wales since June 2012.

Luke Charteris starts alongside fellow lock Ian Evans, who returns following an Achilles problem.

Dragons wing Amos, 19, is the only uncapped player in the starting line-up but stand-in captain Jones said he was confident his inexperience would not be a problem.

"He's playing alongside George North and Leigh Halfpenny so it's just a case of getting out there and showing what he can do," said Jones.