Mason Barnett: Everything you need to know

Barnett struck out four over two perfect innings to earn the save in Tuesday's 7-5 win over the Brewers. Barnett wasn't utilized in Monday's slugfest, leaving him fresh to pitch Tuesday while the bullpen was short. He delivered a tidy outing, collecting his six outs on 31 pitches (20 strikes) for his first career save. Barnett has allowed just two hits with a 12:4 K:BB across eight innings over three relief appearances this season. The Athletics have a hole in the rotation currently, but it may not be an issue until next week. Barnett came up through the minor leagues as a starter, which could make him a candidate for a spot start at some point later in the year. For now, he can be considered a long reliever.

Barnett allowed a hit and two walks while striking out seven over four scoreless innings of relief in Friday's 5-1 loss to the Astros. Entering after four-plus innings of five-run ball from starter Jack Perkins, Barnett was able to pitch the remainder of the game and did so without allowing a run while recording a game-high seven strikeouts. It marked the right-hander's first big-league appearance since being recalled from Triple-A Las Vegas on Tuesday and just his second outing of the season, with the first consisting of two scoreless innings April 19. While this appearance came in relief, Barnett made five starts with the Athletics last season and has continued to operate primarily as a starter in Triple-A. That background could lead to starting rotation consideration if Perkins continues to struggle or Kade Morris is unable to establish himself.

The Athletics recalled Barnett from Triple-A Las Vegas on Tuesday. Barnett made one scoreless relief appearance for the Athletics earlier this season but has spent most of the year in the rotation at Las Vegas, holding a 4.64 ERA and 41:26 K:BB over 42.2 innings. He could get a chance to make some starts for the Athletics, though the club has not yet clarified what Barnett's role will be.