Newport Gwent Dragons coach Darren Edwards is adamant that flanker Dan Lydiate still has time to force his way into the Lions squad.
Lydiate was named the player of the Six Nations last year but missed this year's tournament after breaking and dislocating his ankle.
The 25-year-old returned from six months out on Friday night, playing the first 40 minutes of Newport's 52-19 loss to Ospreys.
However, he now has just four games left this season to convince Lions coach Warren Gatland that he should be in the touring party for the trip to Australia.
But Edwards said: "A month is enough time for a player of Dan's quality to prove himself worthy of a Lions spot.
"He has worked very hard and all he needs is to blow away the cobwebs.
"I am sure Warren Gatland knows what balance of team he wants and knows that Dan, with his hard hitting and physicality, would have stood out for Wales against England (in the recent Six Nations match)."
Lydiate's next opportunity to impress will come on Saturday, when the Dragons take on the Scarlets at the Millennium Stadium.
Edwards said: "We could only play Dan for 40 minutes on Friday, so we were compromised in some ways, but it was important to get him out on the pitch.
"I thought that he did very well and was hunting tackles like he is known for. I am sure there will be another step up in his performance, now that he has got that game under his belt.
"We will now let Dan go flat-out until he drops against the Scarlets."