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10/02/12 10:30 PM ET

Perez leaves favorable impression

OAKLAND -- Martin Perez's rookie season with the Rangers is over. He ended up 1-4 with a 5.45 ERA in six starts and six relief appearances after allowing four runs in four innings against the Athletics on Monday night. In 38 innings, he allowed 47 hits while opponents hit .297 off him. He allowed 15 walks and struck out 25.

Perez, who is just 21 and rated as the Rangers' top pitching prospect, still left a favorable impression on manager Ron Washington.

"He's growing," Washington said. "He showed some flashes of what he's capable of doing and he showed flashes of his youth. He's growing. It's going to take time."

Washington said Perez is probably behind fellow left-handers Matt Harrison and Derek Holland as far as their development when they broke into the Major Leagues. But Harrison and Holland were both 22 when they made their Major League debut.

"Holland and Harrison had the ability to throw two pitches over the plate consistently," Washington said. "Holland, when he first came up, had the fastball and the changeup. Harrison had the curve and the changeup. Perez has a changeup, but it's inconsistent. He has good depth on his breaking ball, but it's inconsistent. He's also still learning to use his fastball on both sides of the plate.

"But he's got four pitches. I see him a starter. He's young and still learning, but he'll figure it out."

Hamilton: Triple Crown makes Miggy the MVP

OAKLAND -- Tigers third base Miguel Cabrera is closing in on the American League Triple Crown and there has been some debate about how important it is.

The debate mainly centers around whether Cabrera or Angels outfielder Mike Trout deserves the AL Most Valuable Player Award. Josh Hamilton, who was a Triple Crown threat at one point this season, is on Cabrera's side.

"Come on, it's the Triple Crown," Hamilton said. "It hasn't been done in how many years? If he doesn't win Most Valuable Player, I'm going to have to quit baseball. Mike Trout -- Rookie of the Year, Cabrera -- Most Valuable Player. Just how infrequently it happens tells you the value if it. I'm excited about it. It's good for the game, it's good for Miguel, it's good for the Tigers, it's good for baseball, period."

Hamilton led the AL with 130 RBIs in 2008 and won the batting title with a .359 average in 2010. He appeared to be a Triple Crown candidate early in the season after being named AL Player of the Month for April and May. But he went into Tuesday's game hitting .286 with 43 home runs and 127 RBIs while Cabrera was hitting .329 with 44 home runs and 137 RBIs.

"I still had a pretty good year," Hamilton said. "Just think if I hadn't taken off June and July. We'll work on that next year."

Adams joins Rangers but status in doubt

OAKLAND -- Reliever Mike Adams flew to Oakland on Tuesday to rejoin the Rangers, but it's still unlikely that he'll be ready for the first round of the playoffs.

Adams remained behind in Texas to be examined by doctors on Monday. He has been bothered by pain and stiffness in his neck and shoulder, and he has been diagnosed with Thoracic Outlet Syndrome, a condition that causes numbness and tingling in the arm. He received an injection in his neck on Monday.

Adams hasn't pitched since Thursday, and the Rangers aren't sure how much he'll be able to throw in the next few days. The Rangers could begin the playoffs as early as Friday or as late as Sunday.

"It's really a matter of how he's feeling and his tolerance," general manager Jon Daniels said. "It's really day to day and step by step. He'll play catch, long toss and then get on a mound."

That may not be enough time to be ready for the first round of the playoffs. But rosters can be adjusted after each round if the Rangers advance.

"We haven't made that call, he's still in the mix," Daniels said. "We'll see how he's feeling, but it will be tough for him to be active without seeing him throw. It would be hard to take him without seeing him."

Beltre remains at designated hitter

OAKLAND -- Rangers third baseman Adrian Beltre was at designated hitter for the second straight game Tuesday while dealing with a strained left shoulder. Beltre continues to undergo treatment and reported some improvement, but manager Ron Washington decided to use him at DH.

"He probably could go back in the field, but Wash wanted to play it safe, and rightfully so," general manager Jon Daniels said.

Beltre was named the American League Player of the Month for September on Tuesday after hitting .337 with 11 home runs, 19 runs scored and 19 RBI. It was the second straight year that he has won the award for September.

Beltre is also one of three finalists for American Player of the Year in the 2012 Players Choice Awards. He is up against Tigers third baseman Miguel Cabrera and Angels outfielder Mike Trout.

Worth noting

• Michael Young and Beltre played in their 155th game on Tuesday night. Nelson Cruz, Elvis Andrus and Ian Kinsler have already played that many. The Rangers are only the 11th team since 1969 to have at least five players appear in 155 games or more, and it's a first for the club.

• Rangers pitcher Yu Darvish is one of three finalists for American League Rookie of the Year in the Players Choice Awards. He is up against Athletics outfielder Yoenis Cespedes and Angels outfielder Mike Trout.

• Young is a finalist for the Marvin Miller Man of the Year Award, along with Braves third baseman Chipper Jones and White Sox first baseman Paul Konerko.

• Rangers reliever Koji Uehara had retired 25 straight hitters before Brandon Moss singled off him in the eighth inning on Monday. Uehara had gone nine straight games without allowing a baserunner, the longest such streak in club history.

• Young and Mike Napoli both hit home runs on Monday, giving the Rangers 200 for the season. It's the 11th time in club history they have reached that benchmark. Going into Tuesday's game, the Rangers ranked fourth in the AL in home runs.

• Young has hit seven of his eight home runs on the road. His only home run in Arlington was on April 11.

T.R. Sullivan is a reporter for MLB.com. Read his blog, Postcards from Elysian Fields and follow him on Twitter @Sullivan_Ranger. This story was not subject to the approval of Major League Baseball or its clubs.