World Cup 2015: Wales replace injured Allen with Tyler Morgan

Tyler Morgan made his Wales debut at centre against Ireland in August 2015

Tyler Morgan has replaced injured Cardiff Blues centre Cory Allen in Wales' World Cup squad.

Allen scored a hat-trick but then tore a hamstring in Wales' opening 54-9 win over Uruguay in Cardiff on Sunday.

Newport Gwent Dragons back Morgan, 20, has won one cap for Wales, in the 21-35 warm-up loss to Ireland on 8 August.

Morgan tweeted: "Massively gutted for Cory with his injury, but hugely honoured to be called up into the World Cup squad."

Allen also took to Twitter, saying: "Thanks for all the messages. Gutted to be taking no further part in this year's RWC but it was fun while it lasted!"

A WRU statement added: "It's disappointing to lose Cory in this way, especially following his man-of-the-match display against Uruguay.

"Tyler was part of the extended squad and trained very well, and will link up with us in London later today [Monday]."

Wales face England at Twickenham on Saturday, before further Group A games against Fiji and Australia.

Props Samson Lee, Paul James and Aaron Jarvis all suffered injuries in the bonus-point win over Uruguay at the Millennium Stadium.

But so far Wales have not decided to replace any of the front-row trio for the tournament, with further updates on their injuries expected later in the week.

Lee and James have calf problems and Jarvis has a rib injury, while full-back Liam Williams has a thigh knock that is thought to be minor.