MINNEAPOLIS -- Looking to bolster the back end of the rotation, the Dodgers acquired left-handed starter Mark Hendrickson and catcher Toby Hall, along with cash considerations, from the Tampa Bay Devil Rays on Tuesday in exchange for right-hander Jae Seo, Triple-A catcher Dioner Navarro and a player to be named later.
The Dodgers, who held a half-game lead in the NL West heading into Tuesday's action, placed starter Brett Tomko on the 15-day disabled list to make room on the 25-man roster for Hendrickson and Hall, who won't join the team until this weekend in Anaheim. Tomko suffered a left oblique strain in his last start, furthering the need for help in the back of the rotation.
Hendrickson, who turned 32 last Friday, is 4-8 with a 3.81 ERA in 13 starts this season. He has held American League hitters to a .241 batting average, which ranks eighth in the league. Hendrickson has led the Devil Rays in victories in each of the last two seasons and posted four of the club's last five complete games.
Manager Grady Little said Hendrickson is slated to make his Dodgers debut on Saturday against the Angels.
"I think our starting pitching needs a boost," general manager Ned Colletti said. "We've been inconsistent through the rotation for a while. Hendrickson gives us an experienced lefty who's gotten better the more he's pitched. We've had our eye on him for a while."
Colletti said the organization talked to all but a handful of teams and finalized a list of four or five players to pursue. After heavy scouting, the Dodgers selected Hendrickson, a former NBA player, because he commands the strike zone.
Hendrickson said he's excited for his first opportunity to play for a winning team.
"Once I get my feet wet and get on a plane and head out to the West Coast, I think the excitement and the enthusiasm of playing for a contender and playing to win is what my focus will be about," he said. "I'm excited. I've been 10 years in professional sports, and this is the first time I've really been on a team that can win it all."
Hall, 30, is hitting .231 with eight home runs and 23 RBIs. He's started 30 games this season for Tampa Bay. Hall said he wasn't immediately sure where he would fit in behind the plate with the Dodgers, who will keep rookie Russell Martin and Sandy Alomar Jr. on their roster.
"This is big in my career right now just to be able to play for a pennant race," Hall said. "Whatever they need me to do to win, I'm ready."
The 22-year-old Navarro batted .280 with two home runs for the Dodgers before suffering a contusion to his right wrist. He was placed on the 15-day disabled list May 5 and optioned to Triple-A Las Vegas on June 15 after being activated.
Martin, who took over for Navarro when he was injured, is batting .301 with 33 RBIs this season. Martin's average ranks fourth among National League rookies.
Seo appeared in 19 games for the Dodgers, including 10 starts. He posted a 2-4 record with a 5.78 ERA.
Jason Brummond is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.