MILWAUKEE -- With the injury to outfielder Magglio Ordonez, the Tigers have "great interest" in Nationals first baseman Adam Dunn, according to a baseball source.

The Tigers need a run producer after Ordonez fractured his right ankle in Saturday's 3-2 loss to the Blue Jays, knocking him out for an estimated six to eight weeks.

If the Tigers were to acquire him, Dunn would be a designated hitter and play in the outfield. They already have a first baseman in Miguel Cabrera.

Nationals general manager Mike Rizzo has said in the past that he would want a lot in return if he were to trade Dunn. Tigers general manager Dave Dombrowski also indicated to local beat reporters that he would not trade top prospects for short-term players.

Dunn, who was hitting .279 with 23 home runs and 62 RBIs entering Sunday's action, is a free agent after the season.

Dunn pays visit to Uecker in radio booth

MILWAUKEE -- During Saturday's game, Nationals first baseman Adam Dunn, who had the day off, went to the radio booth to see Brewers broadcaster Bob Uecker, who to returned to work this weekend after undergoing heart surgery on April 30. The meeting took place in the second inning.

Dunn, who was wearing his baseball uniform, and Uecker have been great friends since Dunn played for the Reds.

"I've known the guy for a long time," Dunn said. "It's good to see him healthy, having fun and back doing what he loves. It was great."

Nationals manager Jim Riggleman appeared not to be happy Sunday afternoon when he learned that Dunn was in the broadcast booth the previous day.

"I wish you wouldn't have told me that," Riggleman said while laughing at the same time.

Riggleman declined to comment after that.

Asked if he would get in trouble for being in the booth during the game, Dunn said: "If I get in trouble going up and seeing a guy after he had heart surgery, I'll pay my fine. That's ridiculous."

Injured Martin to get examined in DC

MILWAUKEE -- Right-hander J.D. Martin, who is on the disabled list because of a bulging disc in his lower back, will return to Washington, D.C., on Sunday night and find out how serious the injury is the next day. Martin last pitched on Saturday and allowed one run in 2 1/3 innings.

With two outs in the bottom of the second, Nationals manager Jim Riggleman, pitching coach Steve McCatty and head athletic trainer Lee Kuntz went to the mound to check on Martin. Catcher Ivan Rodriguez was the first to notice that something was wrong.

Martin said he was OK and remained in the game, but he would later leave after one out in the third, with runners on first and second.

Martin has had problems with his lower back for several years and has not needed surgery. He said he doesn't feel as bad as he expected. He expected the pain to be a lot worse on Sunday, but that wasn't the case.

"That's a good sign," Martin said. "I have some pain shooting down my leg. I'm trying to get that taken care of. I don't think I'm going to be out long."

In the meantime, the team hasn't decided who will pitch in Martin's spot on Friday against the Phillies.

Pitchers Matt Chico, John Lannan or Jason Marquis could get the start.

Livan unlikely to be used to boost 'pen

MILWAUKEE -- Manager Jim Riggleman has decided not to use Livan Hernandez in relief on Sunday even though the team has an overworked bullpen.

With Collin Balester remaining in the Major Leagues, there isn't a need to use Hernandez out of the bullpen. Balester will join Miguel Batista as one of the long men in the bullpen.

"By keeping Balester here, it would be a real reach to pitch Livo today," Riggleman said.

Hernandez last pitched on Thursday, when he tossed a complete game against the Reds.