Gomes, 18, and Garner, 17, traveled to Cardiff on Friday ahead of the premier league clash at the Cardiff City Stadium on Saturday evening.
Sources have told ESPN FC that part of the decision to ax Jose Mourinho on Tuesday had failed to adequately develop the club's young players.
Gomes and Garner, two highly rated youngsters, in his first provisional squad.
Forward Gomes has already Mourinho as a 16-year-old in 2016.
Midfielder Garner was named on the bench for the 2-1 defeat of Valencia in the Champions League.
19659002] Garner, at England youth international, starred for the under-18s in their 4-3 win over holders Chelsea in the FA's Youth Cup on Monday night – a game sources have been told ESPN FC which was watched by Solskjaer even before he knew he would be installed as the next ma rodents.
Meanwhile, Alexis Sanchez has returned to Chile for treatment on a hamstring injury.
The 30-year-old wants to miss the trip to Cardiff but contends for Bournemouth's visit to Old Trafford on Dec 30