Britton allowed two hits and struck out one over three innings as the Baltimore Orioles and New York Yankees played to a scoreless tie on Monday.
Britton, MLB.com's No. 19 prospect, made quick work of the Yankees. He faced three over the minimum in his first spring start.
The left-hander was tested in the second inning, after surrendering a leadoff single to former MVP Alex Rodriguez. Britton got Andruw Jones to hit into a fielder's choice before walking Justin Maxwell, but recovered to fan Greg Golson and retire Melky Mesa on a flyout to end the frame.
Britton tossed two scoreless frames against the Phillies on March 2, his first outing in the Grapefruit League. In five innings against two teams that averaged over 4.5 runs a game in 2010, the 23-year-old has allowed just five base runners.
"I was talking to the guys, and they were like, 'Hey, just go after the guys. They were no different than the Phillies were,'" Britton told MLB.com "I have a lot of respect for what those guys have done on the field, but in between the lines, I was like, 'I don't care who you are. I'm going to go after you today. If you beat me, you beat me.'"
A third-rounder in 2006, Britton was 7-3 with a 2.48 ERA in 15 games for Bowie in 2010 -- his first exposure to Double-A hitters. The California native earned a promotion to Triple-A Bowie, going 3-4 with a 2.98 ERA in 12 starts for the Baysox.
Yankees prospect Adam Warren, a fourth-round pick in 2009, struck out two and allowed a hit over two innings. D.J. Mitchell fanned three in two innings out of the bullpen.