Mt. Lebanon hoped it could make a run at a winning streak against undefeated teams.

Instead, Shaler's Jesse Della Valle ran all over the Blue Devils.

The senior all-purpose player rushed for 128 yards on 28 carries and scored two touchdowns as Shaler knocked off the Blue Devils, 21-12, yesterday in a Class AAAA non-conference contest at Shaler.

The win keeps the Titans (4-0) the only undefeated team in the Northern Six heading into conference play.

After a scoreless first quarter, Della Valle ran 2 yards for a touchdown in the second quarter and added a 51-yard touchdown run to give the Titans an early 14-0 lead.

The Blue Devils got on the board late in the second quarter when running back Luke Alberts ran 10 yards for a score. But a blocked extra-point attempt kept Mt. Lebanon eight points down heading into halftime.

The blocked kick proved costly.

Mt. Lebanon's Luke Hagy ran back the second-half kickoff 95 yards for a touchdown, but the Blue Devils failed on the 2-point conversion that would have tied the score.

That was the last time Mt. Lebanon scored.

Shaler added a touchdown in the third quarter to go up by two scores.

The Titans outgained Mt. Lebanon (2-2), 290 yards to 165.

• Steel Valley 27, Bishop Canevin 7: Tony Johnson and Delrece Williams each scored two touchdowns, and Williams ran for 187 yards to lead Steel Valley (3-1, 3-1) to its third consecutive win in the Class AA Century Conference.

• Ford City 14, Summit Academy 0: The Sabers and Knights combined for just 26 passing yards, but Ford City's running backs ran for 178 yards and two touchdowns to keep the Sabers (4-0, 4-0) tied atop the Class AA Allegheny Conference.

• Rochester 39, Western Beaver 0: Trey Johnson scored three touchdowns, caught five passes for 104 yards and ran for 64 more in leading the Rams (4-0, 2-0), the Post-Gazette's top-ranked team in Class A, to the Big Seven Conference victory.

Rochester will entertain undefeated Laurel in a key conference contest Friday night.

• Monaca 45, Shenango 26: Joe Colangelo rushed for 242 yards and five touchdowns in leading a Monaca (2-2, 1-1) offense that gained 364 yards in the Class A Big Seven. Shenango (3-1, 1-1) did not attempt a pass in the loss.

• California 49, Geibel 21: D.J. Martinak ran for 176 yards and four touchdowns and was 8 of 9 passing for 113 yards as the Trojans (3-1, 2-0) knocked off the Gators (1-3, 0-2) in Class A Tri-County South Conference play.

• Perry 13, Peabody 0: The Commodores held the Highlanders (2-2) to just 31 yards of offense as the Post-Gazette's top-ranked City League team moved to 3-1. Peabody had more penalty yards (65) than total yards in the loss.

• Brashear 49, Allderdice 18: Five Bulls found the end zone, and Henri Chatman tossed three touchdown passes for Brashear (3-1). The Dragons are winless after four games.

• Schenley 6, Oliver 0: Jerome Mathews' 7-yard touchdown run in the fourth quarter was the lone score of the game. The Spartans (3-1) held the Bears (3-1) to 11 yards rushing.

• Carrick 20, Westinghouse 14: Jajuan Thomas scored all three Raiders (2-2) touchdowns, and scored the winner on a 23-yard reception with 51 seconds remaining.

Mike White's "High School Sports Edition" videos are featured exclusively on PG+, a members-only web site from the Pittsburgh Post-Gazette. Our introduction to PG+ gives you all the details.