WEST ROXBURY – The Classical football team showed up at Catholic Memorial last night with a major new wrinkle in its offense – Jasper Grassa calling signals instead of Kashawn Avery.That’s the big news from the game. Considering the fact the Rams were playing a team from the elite Catholic Conference, which went into the game undefeated with an impressive win over Cambridge under its belt, it’s probably not such big news that the Knights prevailed, 21-0.Despite the loss, however, coach Tim Phelps was far from distressed. First, after four games, the Rams stand at 2-2; and second, taking a Division 1 team from one of the state’s best leagues into the half, trailing only 6-0, could almost be considered a moral victory ? if there were such things.”I thought we played well on defense at times,” Phelps said. “We stopped them a couple of times. And we had our chances, too. But we shot ourselves in the foot.”As for the quarterback shift, “Nothing against Kashawn,” Phelps said. “It doesn’t mean that we’re down on him. But we need to get him some more touches ? take advantage of his speed.”The problem is that shifty running back Calvin Harris is injured again (he lost all of last season to a knee injury), and “there’s really no timetable yet for him being ready to come back,” Phelps said.”And he’s fast,” the coach added. So the thinking was that the Rams would be better served with Avery running the ball “because he’s pretty quick, too.”Avery and Cameron Smith gave Classical the two-pronged running attack it generally uses (though Smith got most of the touches last night).”We had them both working out at quarterback during the preseason,” Phelps said.Classical went three-and-out on its first possession, and punted from deep in its own territory. With a first down on the Rams’ 34, CM needed no time to score. Five plays later, Lorenzo Warren ran it in from the two, and the Knights, 4-0, were up 6-0.It stayed that way until the third quarter, though both teams had their chances. Classical got as far as the CM 28 on its next drive before stalling on a fourth-and-one. Classical returned the favor by stopping the Knights on a fourth down from the Rams’ 36.The next drive was a killer. Classical took over on its own 37 and the running game began to click. Smith, Avery and Gary Sisson took turns running the ball against a much-bigger CM defense until Smith, after a 13-yard run, gave his team a first down from the CM five.Unfortunately, Avery lost four yards when he slipped on a sweep, and then Classical fumbled, with CM recovering. It looked as if the Knights would go in again, but, once again, the defense held and the half ended at 6-0.CM wasted no time putting the game away in the third quarter, scoring touchdowns off two lengthy drives. The first, by co-captain Andrew DeBartolo, came on an eight-yard run and capped a 68-yard drive; and the second was a 20-yard run straight up the middle by co-captain Delroy McDonald that capped a 58-yard drive.Classical had one last chance to reach the end zone when it had a first down on the CM 33. But an interception killed the drive and kept the Rams off the board.