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3/7/2013 6:30 P.M. ET

Eaton's aggressiveness on bases leads to scuffle

PHOENIX -- Adam Eaton's all-out style of play had a tendency to rub opposing players the wrong way during his climb through the Minor Leagues, and the D-backs outfielder drew the wrath of Royals third baseman Mike Moustakas on Wednesday.

Eaton led off the game with a bunt single and reached second on pitcher James Shields' throwing error. With one out and Mark Teahen at the plate, Eaton thought he could catch the Royals napping, so he took off for third before Shields delivered a pitch.

Shields, though, stepped off and threw to Moustakas, who tagged out Eaton. In the process the two got tangled up and Moustakas wound up with a split lip and the two exchanged words as Eaton left the field.

"Just a guy not knowing the game, that's all it is," Moustakas said. "Just doesn't have a feel for the game, that's it. That's all I've got to say."

Eaton said he was simply trying to be aggressive and any contact with Moustakas was unintentional.

"For sure, any guy that steals bases and tries to get an advantage and max out their effort is going to sometimes rub people the wrong way," Eaton said. "I just take it with a grain of salt and learn from it. We just kind of got a little tangled up and I guess he took offense to it. You take it your own way and I guess that's just how it crumbled."

D-backs manager Kirk Gibson, who encourages his players to be aggressive on the bases, said his only problem with the play was Eaton's decision to try and run there.

"He just got too excited to go," Gibson said. "That's what he has to learn. He has to learn when and when not. He wants to go, he wants to do well.

"He has tools. To be fair, we all know he needs to learn how to use his tools. As far as Moustakas, I don't give a [expletive] what he thinks."

Corbin has first rough Spring Training outing

PHOENIX -- Patrick Corbin struggled through his first poor outing of the spring when he allowed four runs in just one inning of work.

Corbin is battling Randall Delgado and Tyler Skaggs for the No. 5 spot in the D-backs rotation, and he did not allow a run in five innings in his first two outings this spring.

"I didn't really feel too good [Wednesday]," Corbin said. "I don't know why; just one of those days. Just mechanics and everything, I kind of felt like I was rushing everything, just really couldn't locate. I was throwing a lot of off-speed pitches and fell behind a lot of the hitters.

"Just one of those days where I didn't feel that good. I don't know if my arm wasn't as loose, but I just felt like I was rushing my mechanics a lot."

The big blow of the inning was a grand slam by Kansas City's Alex Gordon, but what most concerned manager Kirk Gibson was Corbin not being able to make adjustments during the inning.

"When it starts like that, you have to fix it," Gibson said. "Inevitably if you don't fix it in a game, that's what's going to happen for him."

With the longer Spring Training this year due to the World Baseball Classic, there is still plenty of time for one of the three pitchers to separate themselves .

"I'm not in any hurry for that," Gibson said regarding choosing a No. 5 starter. "We've got a long way to go. We've got 25 games left? There's a long, long way to go. We'll continue to take it in and watch it."

Snake bites

• The D-backs are hoping that injured outfielder Cody Ross (left lower leg) will be able to perform weight-bearing activities by March 18 or 19. If he's able to do that, there is a good chance he would be ready for the April 1 opener against the Cardinals.

"That should give us some time," Gibson said when asked about Opening Day. "It's reasonable that it could be, yes."

• Outfielder Adam Eaton was not scheduled to play Thursday, but Gibson brought him along to Maryvale so Eaton could sit with him during the game.

"He's over here to watch the game and we'll talk about situations," Gibson said. When things come up in a game, we'll call him down, we'll talk. Maybe somebody gets on base and say, 'What would you be thinking here?' He's so excited to do well. He's so excited to prove that he can have a great impact for his team. He just needs to learn how to channel that energy."

• Outfielder Tony Campana was caught stealing in the first inning Thursday and got spiked in the hand in the process.

The laceration on his left hand required eight stitches and will keep him out of action for a least a few days.

"He missed the tendon," Gibson said. "He'll be fine. It could have been worse."

Steve Gilbert is a reporter for MLB.com. Follow him on Twitter @SteveGilbertMLB. This story was not subject to the approval of Major League Baseball or its clubs.