Big boost for Leinster ahead of Euro Final
McGrath has been on the sidelines with an ankle injury and he missed his team's Champions Cup semifinal win over Scarlets.
According to independent.ie, Leinster confirmed he "has recovered from an ankle injury picked up against Saracens and is expected to train as normal this week".
Jamison Gibson-Park started in the No.9 jersey when Leinster beat Scarlets.
Meanwhile. Jordi Murphy "is expected to train fully this week" while Rhys Ruddock will be assessed this week for a hamstring injury.
Fergus McFadden will miss the Final after being ruled out for the rest of the season. He picked up a hamstring injury against Scarlets.