Victor quickly moved the ball to the Brockport 25 in an effort to tie, but Mitch Ford forced a fumble on the Brockport 17-yard line and Collins recovered with 50 seconds left.
Brockport took a 24-15 third quarter lead after Sydeski found Frankie Marcera with an 85-yard TD pass.
Tommy Wagner answered with a long pass to Zac Towner that set up a field goal and a ten-yarder to Connor Powers to give Victor a 25-15 lead early in the 4th quarter.
Sydeski finished 13-for-23 for 244 yards and three touchdowns and Collins had four catches for 73 yards for Brockport.
Brockport will play McQuaid in the semifinals at Sahlen's Stadium Saturday night.