A HAMSTRING injury has ruled prop Samson Lee out of Wales’ remaining autumn series.

The Scarlets forward, who missed the wins over Scotland and Australia, is receiving treatment back at his region.

“It’s unfortunate for Samson, he’s an outstanding player, and the last few times he’s been in he’s suffered a few injuries, and likewise again this time,” said wales kicking coach Neil Jenkins.

“It’s sad to lose him but it is what it is.”

Meanwhile, full-back Leigh Halfpenny, replaced in the latter stages of Saturday’s 9-6 defeat of the Wallabies, is being monitored after suffering a head injury.

The match officials decided to take no action when Australian centre Samu Kerevi tried to charge down Halfpenny’s clearing kick and struck the Welshman’s head with his shoulder.

“It’s unbelievable how you can think that’s not a penalty,” added Jenkins.

“I’m not quite sure what the rules are stating at this moment in time, but he doesn’t go down lightly, he’s a tough player and he’s constantly getting up and keeps playing.

“He’ll go through his protocols and see where he’s at later in the week.”

Winger George North (dead leg) will also be monitored ahead of this Saturday’s clash with Tonga at Principality Stadium.

Prop Tomas Francis is expected to shake off a back problem, while fly-half Rhys Patchell is available for selection after concussion.

“Franny’s ok, he’s going to be alright,” said Jenkins. “We’ll just see how he goes over the next day or two.

“It’s the culmination of a tough Test match, he’s a bit battered and bruised, and these boys go through the mill when they play.

“Hopefully he’ll be fine for this weekend and be in contention.

“George is the same. We’ll just see how he goes over the next few days.

“He had a heavy knock in the game and couldn’t play any further part in it.

“Patch has been an outstanding player for us, certainly in the summer he was exceptional, so to have him back in the fray again and available for selection is excellent.

“I’m sure Gats will give boys a few opportunities this Saturday and we’ll see how it goes.”