Wednesday 23 January 2019 15:56, UK
Leigh Halfpenny has been ruled out of Wales' Six Nations opener against France while Gareth Davies and Scott Williams are also doubts.
Halfpenny has been sidelined for nearly three months after sustaining concussion in the victory over Australia.
Scrum-half Davies (quad) and centre Williams (ankle) are also unlikely to feature at Stade de France on February 1.
"Leigh will miss the first couple of games," said Gatland. "He is making progress, he is improving, and he has been taking part in training so for us we want to ease him back slowly.
"But there is not any pressure from us in terms of trying to rush him back because the most important thing is his health and his safety.
"Hopefully, we can potentially include him for the final games of the tournament."
Wales play just two home games in this year's championship, which includes a potential title-decider against defending champions Ireland on March 16.
"Ireland deserve to be ranked number two in the world, and you could argue that they are actually the best," said Gatland.
"They are favourites to win the World Cup, and rightly so. They are tough to play against, because of their ball retention, and you have to keep your discipline against them.
"They are one of, if not the hardest teams to play against at the moment."
