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03/20/2013 6:50 PM ET

A's make Minor trade with Brewers, finish Nats deal

PHOENIX -- The A's made one trade with the Brewers and completed another with the Nationals on Wednesday.

Oakland and Milwaukee swapped Minor Leaguers, with the A's giving up third baseman Stephen Parker in exchange for right-hander Darren Byrd.

Oakland also sent lefty Ian Krol to the Nationals as the player to be named in the three-team trade that sent John Jaso to the A's, Michael Morse to the Mariners and two other Minor Leaguers to Washington.

Byrd, 26, spent three seasons in the Brewers' farm system, most recently compiling a 2.59 ERA in 50 relief appearances for Double-A Huntsville. He appeared in one game this spring before he was returned to Minor League camp on March 7.

Parker, taken by the A's in the fifth round of the 2009 First-Year Player Draft, hit .256 with seven home runs and 47 RBIs in 99 games for Triple-A Sacramento last season, after batting .287 between two affiliates the year before.

Over four minor league seasons, the 25-year-old Parker is a career .277 hitter with 43 HR and 262 RBIs in 448 games.

Colon unable to keep opponents' hits total down

PHOENIX -- The hits kept coming against Bartolo Colon on Wednesday, when the right-hander pitched in a Minor League game to remain on schedule while the A's had an off-day.

Colon, who entered the day having given up 22 hits in a combined 11 innings over four Cactus League appearances, surrendered 10 hits in five-plus innings to the Angels' Minor League team.

The veteran righty gave up five runs in the process, striking out three and walking two along the way. He tallied 81 pitches.

Colon will make at least one more start this spring, before being relegated to the sidelines for the first week of the regular season while he serves the final five games of his drug suspension.

A's manager Bob Melvin said this week that Colon will return to the rotation as soon as he's eligible, no matter how the interim fifth starter -- projected to be right-hander Dan Straily -- performs in the meantime.

Melvin and the A's are not so much concerned with the total of hits allowed this spring by Colon, since he has a proven track record. Still, it's hard to ignore, especially considering Colon only offered up 10 hits spanning 16 innings in his last full Spring Training, in 2011 with the Yankees.

Jane Lee is a reporter for MLB.com. Read her blog, Major Lee-ague, and follow her on Twitter @JaneMLB. This story was not subject to the approval of Major League Baseball or its clubs.