The Colorado football team doesn't know the severity of Laviska Shenault's injury - or at least isn't saying anything publicly.
Head coach Mike MacIntyre did announce Monday, however, that defensive lineman Jase Franke is done for the season with a torn ACL in his right knee.
The pain from Saturday's 31-20 loss to Southern California will linger for a while for CU (5-1, 2-1 Pac-12), which has to regroup quickly for a visit to No. 15 Washington (5-2, 3-1) .
"No excuses, no regrets," MacIntyre said of the challenge this week. "Nobody cares. They just expect you to show up and win on Saturday, so that's what we have to do."
Shenault, who leads the country in catches and receiving yards per game and has been one of the most dynamic players in the country this season, skipped practice and wore a walking boot Monday.
The talented sophomore didn't play the final 18 minutes Saturday after injuring a toe on his right foot.
"We haven't found out anything on it yet," MacIntyre said. "They're still evaluating everything. We haven't found out any total results or anything. He still has a sore toe, but we'll see."
Shenault was one of several key players to leave the game with injury, including Franke. A valuable member of the line rotation, Franke tore his ACL midway through the first quarter. Since he's a senior, that will end his collegiate career.
"It was really tough," MacIntyre said. "I went over to him on the sidelines in between the timeouts after I realized what was going on. When we started talking, he started bawling, which I don't blame him whatsoever. I wanted to start crying, but I had to stay focused.
"He's done a great job here for us as a player; he's a phenomenal young man. He's going to be a big-time success in life and we're going to miss Jase. Hurting your knee is hard enough, but when you know it's over, that's really hard."
Receiver Jay MacIntyre left the game, as well, and is going through concussion protocol this week.
Running back Travon McMillian also left the game after a taking a hard hit to his thigh. MacIntyre said it was a bruise, and McMillian was at practice Monday.
"He's running around today doing fine," he said.
Overall, the Buffs took it easy on Monday after a physical game and a late a contest on the road that had the team getting home around 6 a.m. Sunday.
"We had a good practice and slowed it down a little bit," MacIntyre said. "A little more walk through and that type of thing. This is still part of recovery for us, but I thought they were really focused and locked in."
Senior linebacker Rick Gamboa said he was pleased with how the team responded to the loss to the Trojans.
"It's tough taking a loss after starting 5-0, but it happens," he said. "We have to move on. We can't do anything about it now. We have another game this week and that's our biggest importance right now. We can't let that loss linger on. If we let it linger on, it affects us in this next game and that's when it starts becoming a problem."
Quarterback Steven Montez had his worst statistical game of the season against USC, completing just 26-of-47 passes (55.3 percent) for 170 yards and an interception. It was the first time this season he didn't throw a touchdown pass.
MacIntyre, however, said he felt Montez fought throughout the game.
"Overall, Steven kept playing well enough to give us a chance to win," he said. "You go back and watch that game and watch how that guy competed, Steven competed like crazy and gave us an opportunity to have a chance to win."
Colorado's game against Oregon State on Oct. 27 will kick off at 1 p.m. at Folsom Field. The Buffs' annual homecoming game will be broadcast on the Pac-12 Networks. ... MacIntyre said he considers USC a rival because of the emotion and energy of the games with the Trojans, but said, "We've got to win some of them to make it a real rival. We need to correct that somewhere down the road." CU is 0-13 all-time against USC. ... Pac-12 players of the week: Oregon's CJ Verdell (offense), UCLA's Keisean Lucier-South (defense) and Utah's Mitch Wishnowsky (special teams).