Ireland's RBS 6 Nations top points scorer Jonathan Sexton once again inspired the Heineken Cup finalists with a 14-point haul as Glasgow Warriors were edged out 19-15 to set up a Dublin final against Welsh team Ospreys.
David Kearney's second-half try proved the difference on the day and has left Leinster with the chance to become the first team since Wasps in 2004 to do a domestic and European double.
But after Brian O'Driscoll and Rob Kearney both sat out the semi-final; knocks to Ireland duo Cian Healy and Gordan D'Arcy as well as Eoin O'Malley also left Schmidt with cause for concern.
"Eoin doesn't look too good to be honest. He has had a pretty rough knock on the knee, so he is going off to get scanned," admitted Schmidt.
"We'll have more information on him then, but it is too early to tell. Cian was walking fine by the time he got to the sideline, it was as much precautionary as anything else.
"He might have a little bit of inflammation around the ankle, but that's it. I think Gordon D'Arcy just got a knock and split the top of his eye.
"I'd say after 12 years of professional rugby it's stitching on top of stitching now. It's just a case of the eye closing over a little bit. Your depth of perception becomes a little bit blurred so we thought that we were better off to take Gordon off and look after him for next week."