Morris 27, Sterling 7: Adam Tondini scored three touchdowns and Drew Tondini had one as Morris rolled past visiting Sterling.
The Redskins (7-4), who had to win their final three regular season games to make the playoffs, are making their 17th quarterfinal appearance and seventh in the last eight years.
"We've been in the playoffs for about two months now," Adam Tondini said. "We just knew we had to come out and get this game."
Sterling (9-2) jumped out to a 7-0 lead on a 59-yard touchdown pass from Niko Rivera to Dustin Fritsch with 7:47 left in the first quarter. Morris, however, came right back to tie the score on a three-yard touchdown run by Drew Tondini.
In the third quarter, Adam Tondini burst out for a 64-yard touchdown run on the second play from scrimmage, finishing with 28 carries for 166 yards.