Nearly a dozen Penn State players went down in the heat and had to be helped out of the game.
But the replacements kept coming in: replacements for star running back D.J. Dozier; for starting quarterback John Shaffer; for all-America candidate defensive tackle Mike Russo; for offensive guard Todd Moules; for fullback Steve Smith.
No Maryland players were helped out because of the heat, which reached 96 degrees in 74 percent humidity.
To start the second half, Penn State Coach Joe Paterno sent most of his second-team defense onto the field. Maryland quarterback Stan Gelbaugh was asked whether he noticed the change.
"The way their second team played, I don't think it made that much difference at all," he said.
During Penn State's 20-18 victory, Paterno must have used nearly all 70 players or so that he brought from University Park, Pa.
Shaffer even remarked: "I had an awfully good backup today and it showed. I was really pleased with the way everyone performed."
Matt Knizner, Shaffer's backup, didn't play that long. He threw only one pass. But he completed that for 15 yards, and kept Shaffer out of the heat for a few more handoffs.
In all, seven Nittany Lions carried the ball, three threw it, six caught it and many, many more blocked for those 16. Maryland used just about as many. But Penn State's reserves were a crucial part of victory.
Maryland came in favored to win by seven points against a team that was 6-5 last year in what some called "an off season."
If Maryland was ever to win a game in this lopsided series (Penn State holds a 28-1 lead) it would have seemed to be this year.
But it was Penn State guard Moules who said, "I think we had the mental edge . . . "
Penn State must have held some kind of edge. Maryland Coach Bobby Ross said the Nittany Lions' defense actually was simpler than expected.
After the game, the Nittany Lions certainly didn't act as if they were surprised to win, probably because they weren't. When asked what the victory meant, Moules said: "It means we're 1-0 and we've got Temple next week."
It was reported by some television stations that Gelbaugh suffered an injured arm before the game, which was at least partly responsible for his erratic passing performance (12 of 28, 137 yards).
Gelbaugh said he wouldn't blame his throwing inaccuracy on the heat or anything else.