The Clemson offensive line was having its best day of fall camp on Saturday, until the weight of 90-degree heat got to the Tigers’ young linemen.

But that’s why they have fall camp. The 15 fall practices, which includes three two-a-day practices, is geared to bring a team together, while also getting them used to the grind of a long regular season.

“Being in this heat, you are kind of grinding,” Clemson left guard Eric Mac Lain said. “It is getting monotonous, hitting the same guys over and over again.”

Mac Lain said Saturday’s two-hour scrimmage was a “very good one” for the offense, overall. C.J. Fuller had a 65-yard touchdown run, while Wayne Gallman and Tyshon Dye averaged more than five yards per carry. They also did a good job keeping the pressure off quarterback Deshaun Watson as he threw two touchdown passes, including a 72-yard pass to wide receiver Charone Peake.

“We ran the ball well. We protected well. We had a ton of big plays,” Mac Lain said. “I just think the heat factor set in on our young players towards the end and that kind of overshadowed the goodness that was in the scrimmage.”

Mac Lain said head coach Dabo Swinney tore into the defense after practice, which explained why safety Jayron Kearse was not in a good mood afterwards. Swinney also lit into the offensive line for not finishing the job and letting the defense get after them in short yardage situation.

“They really came after us for the short yardage, and he really came at us so we feel really personal about it too, but we are going to come together,” Mac Lain said. “It is the grind of camp, but when we see another color jersey out there it will be a different story.”

Co-offensive coordinator Tony Elliott said he was encouraged by what he saw.

“I thought they competed,” he said. “It was not our best day from a tempo standpoint. I thought we could move a little bit faster. I saw some good things and I saw some guys flashing, but there were still some critical mistakes that we have to get cleaned up.

“I was encouraged by what I saw in the red zone. We were able to get the ball into the end zone a couple of times, and also did not lose yards so we could kick and secure the points in the red zone.”

The turnovers are still a concern for Elliott. The Tigers had four overall, including three interceptions.

“You are always concerned about ball security,” he said. “We have learned in the past it comes with seasons. The big thing today is that we put one ball on the ground, (Adam) Choice did put one on the ground and the other one was a great play by the defense. They jumped a route. The other two were tipped balls. Anytime you tip the ball up in the air from the receiver position … like we say, tips are picks.

“Offensively, it can all be corrected. It is a little bit of a concern, but they will focus back in. Obviously, it is camp. They are tired. They just did not have the complete mental focus they needed today.”