BOSTON -- Giving up the walk-off home run to Mitch Moreland on Friday night at Fenway certainly didn't dampen the confidence of White Sox rookie Aaron Bummer, even in his fourth career game.
In fact, the southpaw wanted the baseball again Saturday night.
"It's one of those things where I woke up today and still trusted the stuff I have and know it's good enough to get people out," said Bummer, who did not pitch in Saturday's 4-1 loss to the Red Sox, but threw a scoreless eighth with two strikeouts in Sunday's 6-3 setback. "The difference between the Minors and the big leagues is your mistakes get punished.
"I made a mistake and left a ball up and he hammered it. It's unfortunate that it came with a loss and it was a walk-off and those types of things. But I'm going to go about my business the same way I have before and next time I go out and trust myself and keep grinding."
Bummer represents the quiet confidence shown by the White Sox prospects who have arrived to the Majors this season. The same holds true when looking at a calm Yoan Moncada, the No. 1 prospect in baseball per MLBPipeline.com, in the face of what became a 4-for-42 start with the White Sox.

Much like Bummer, Moncada believes in his ability and his approach. Nicky Delmonico, who has eight hits in 23 at-bats (.348), basically is learning left field as he goes in the Majors. But early daily work has helped Delmonico adjust even in the four games since he arrived.
This group has the talent to succeed, but doesn't appear to be afraid of failing. It's a testament to the players, the time the organization has given them to develop and that confidence instilled in them through a culture created by manager Rick Renteria starting in February in Arizona.
"They take everything with a grain of salt," Renteria said. "Good or bad, they're doing a nice job keeping it in perspective. Our kids come in with a note of confidence, but not arrogance. When you're here, confidence is one of the big things you can take with you. They should be that way. They're going to have bumps and bruises along the way, but as they continue to learn, you hope that confidence also continues to grow."
"Unfortunately, we all know this game can be humbling at times and how you deal with adversity and the ability to block out can go a long way to dictate how much success you can have," White Sox general manager Rick Hahn said. "But Aaron and Nicky and others in the organization have shown resiliency and mental toughness."
Davidson late scratch
Matt Davidson was a pregame scratch Sunday. Davidson has missed the past five games with a bruised right wrist after being hit by a Marcus Stroman pitch Tuesday and exiting early. Tyler Saladino replaced Davidson as the designated hitter, finishing 1-for-4 in the 6-3 loss.
"He gets the extra day [Monday]," said Renteria of Davidson, who hit off the machine Sunday morning, still felt a little soreness and felt he would put the team in a bad situation if he went out and did something where he wasn't feeling completely comfortable. "And we'll see how he is in the next couple of days."
White Sox claim Peterson
The White Sox claimed infield prospect D.J. Peterson off waivers from the Mariners on Sunday and optioned him to Triple-A Charlotte. The move brings their 40-man roster to 37.
Peterson, 25, batted .264 with 17 doubles, 12 home runs, 54 RBIs and 47 runs scored in 103 games this season with Triple-A Tacoma before being designated for assignment July 30. He appeared in 51 games at first base, 43 at third and one in left field and hit .287 over 54 games in June and July. He was ranked as Seattle's No. 14 prospect by MLBPipeline.com.