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4/11/2014 7:59 P.M. ET

Cashman standing by team's roster construction

NEW YORK -- The Yankees have had to be more creative than expected in juggling some of their early-season lineups and relief pitching, but general manager Brian Cashman is standing by the team's roster construction.

With first baseman Mark Teixeira and closer David Robertson on the 15-day disabled list, manager Joe Girardi has been using Kelly Johnson as the regular first baseman while leaning mostly upon Shawn Kelley to close out games in the ninth inning.

Cashman said that after the Yankees spent hundreds of millions on free-agent imports like Masahiro Tanaka, Brian McCann, Jacoby Ellsbury and Carlos Beltran, there was just not enough budgetary room to prepare for every possible scenario.

"I think we were very open about our intentions," Cashman said. "We wanted to fix as much as we could, but acknowledged that we couldn't fix everything that needed to be addressed. That's with the money we were in position to spend as well as the available talent. The better talent was really heavily in favor of the outfield rather than the infield.

"I don't have any regrets. We pulled down the players that we targeted and we were open with the infield and the bullpen would be unanswered questions that everyone would need to stay tuned with as a developing story. It's the same verbiage I used in the winter time."

Cashman said that he has been "more than pleased" with rookie Yangervis Solarte, who has been an April star for the Yankees, and added that it is important for the ballclub to get through this stretch while Robertson mends a strained left groin.

"If we can get through the period while Robbie's down with success, we'll be better off for it," Cashman said. "As Adam Warren starts to get more leverage situations and then [Cesar] Cabral comes in last night and gets some leverage situations and Matt Thornton is expected to get some leverage situations, that builds confidence."

Teixeira likely to be activated before May 1

NEW YORK -- The Yankees expect first baseman Mark Teixeira to return from the disabled list before the end of April, but they will likely be without infielder Brendan Ryan until later in the season.

Manager Joe Girardi said on Friday that he is "pretty sure" that Teixeira (strained right hamstring) will be activated before May 1. Ryan (cervical spine nerve) is just beginning light baseball activities at the Yankees' complex in Tampa, Fla.

"He really hasn't had any Spring Training, and you think about what a position player goes through to get himself 40-60 at bats in Spring Training, he's going to take some time," Girardi said.

Girardi said that Ryan has been swinging the bat, but he is not close to getting into Minor League games. General manager Brian Cashman left some wiggle room when asked if Teixeira and David Robertson (strained left groin) would both return in April.

"I'm not ready to say that yet," Cashman said. "I know they hope they can be, and I certainly hope that they will be, but I think it's early in the process to say that -- even though I know it's a 15-day situation for those guys."

Bombers bits

• Catcher Brian McCann was not in Friday's lineup, a scheduled day off with the Yankees and Red Sox set to play a 1:05 p.m. ET contest on Saturday. Outfielder Brett Gardner also received a day off.

David Phelps and Vidal Nuno were likely unavailable to pitch on Friday, according Girardi. Phelps threw 2 1/3 innings for his first career save on Thursday, and Nuno was used for 3 1/3 innings of long relief on Tuesday against the Orioles.

• Teixeira turned 34 on Friday.

• On this date in 1912, the Yankees donned pinstripes for the first time, wearing them for their home opener at Hilltop Park in Manhattan. The Yankees lost, 5-3, to Boston; they would abandon the pinstripes in '13 and '14, but bring them back for good in '15.

Bryan Hoch is a reporter for MLB.com. Follow him on Twitter @bryanhoch and read his MLBlog, Bombers Beat. This story was not subject to the approval of Major League Baseball or its clubs.