The Mariners have two starters -- Felix Hernandez and Wade Miley -- on the 15-day disabled list and Taijuan Walker is dealing with tendinitis in the arch of his right foot that has caused him problems in his last two starts, including Sunday's five-inning outing in a 2-1 loss at Boston. Dipoto said the trade wasn't related to the current injury situation, but with more of an eye toward the long-term.
Lee, 24, was a first-round Draft pick of the Dodgers out of McKinney (Texas) High School in 2010 who has gone 7-5 with a 4.89 ERA in 13 starts for Triple-A Oklahoma City this year. The 6-foot-4, 227-pounder made one Major League start for the Dodgers last year, giving up 11 hits and seven runs in 4 2/3 innings to the Mets on July 25.
Taylor, 25, has played 86 games for the Mariners over the past three seasons, putting up a .240/.296/.296 line with no homers and 10 RBIs in 233 at-bats. He played in two games for Seattle this season, going 1-for-3 at the plate but committing a pair of costly errors at shortstop before being sent back to Triple-A Tacoma.
Taylor hit .311 with three homers and 29 RBIs in 62 games for the Rainiers this season. He was a fifth-round pick by the Mariners in the 2012 Draft out of Virginia.
Lee was the Dodgers' Minor League Pitcher of the Year last season when he went 11-6 with a 2.70 ERA in 19 starts for Oklahoma City.
Lee turned down a scholarship to play quarterback at Louisiana State when the Dodgers gave him a club-record $5.25 million signing bonus after drafting him with the 28th pick in 2010. He was rated as the Dodgers' No. 21 prospect by MLBPipeline.com.
Greg Johns has covered the Mariners since 1997, and for MLB.com since 2011. Follow him on Twitter @GregJohnsMLB and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.