Officially, the White Sox are saying Humber has a facial contusion. He was re-evaluated Friday and was on the bench for Friday night's game against the Texas Rangers.
"It's definitely not what I want," Humber said Friday. "I definitely want to be out there pitching and competing. But at the same time, it's not my decision. They're looking out for me as well as the team. I'm happy to do what they tell me to do, and I'll be working hard and looking forward to next time."
Humber was hit in the forehead by a line drive off the bat of the Indians' Kosuke Fukudome in Thursday's game. He went straight to the ground after getting hit but was able to get to his feet quickly.
Humber asked to stay in the game, but was removed by the White Sox's training staff and walked off the field under his own power.
"He was fine yesterday and he seems fine today but I think we have enough people there to protect him after something like that," manager Ozzie Guillen said. "I am not a doctor but in this kind of case you don't know which way to go. He's lucky to be walking now and there is no reason to risk not just for a baseball game. I don't think it is worth it."
To take his place on the roster, the White Sox purchased the contract of right-hander Josh Kinney from Triple-A Charlotte.
Kinney was 6-3 with a 2.77 ERA at Charlotte and recorded 14 saves. He has major league experience over three seasons with the Cardinals (2006, 2008 and 2009).
Humber is 8-8 this season with a 3.63 ERA. He is also at 131 1/3 innings and has never pitched more than 148 in his pro career. General manager Kenny Williams acknowledged the escalating innings as another reason a DL stint made sense.
"I keep hearing that," Humber said. "Personally, I feel strong. Last night I felt as strong as I've felt all year. I don't think that's going to be an issue. I guess we're making sure of that. I guess they're looking out for my best interests as well as the team, so I'll go with what they tell me to do."
It doesn't mean Williams hasn't been impressed with the season Humber has delivered or the toughness he showed Thursday.
"I was in the clubhouse while he was being examined [Thursday] and he was laughing and smiling and I didn't know if it was adrenaline or his head was that hard," Williams said. "It was impressive. His wife wasn't handling it so well even though he tried to lighten the mood. She sees a big lump above her husband's eye, but anytime something like that happens, it's scary. We're fortunate he's come away intact."
Doug Padilla covers the White Sox for ESPNChicago.com.