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8/23/2013 10:30 P.M. ET

Storen could earn more save opportunities

KANSAS CITY -- Nationals manager Davey Johnson hasn't ruled out right-hander Drew Storen closing more games the rest of the season. Johnson acknowledged that he is concerned about closer Rafael Soriano, who has allowed seven runs in his last 11 1/3 innings.

"I don't know if I overworked him, but his numbers aren't as good as they been have in the past," Johnson said.

Since Storen return from the Minor Leagues, he has retired 15 out of the 16 hitters he has faced and Johnson feels Storen is back to the pitcher who saved 43 games in 2011.

Ramos credits Suzuki for evolution as catcher

KANSAS CITY -- With Kurt Suzuki traded to the A's on Thursday night, Wilson Ramos will be the everyday catcher. Although Ramos is pleased to play every day behind the plate, he called Suzuki a great teammate.

When Spring Training started this season, Ramos made sure he learned a lot about the game from Suzuki. He said Suzuki had more experience than he did. Ramos had the same experience with Ivan Rodriguez in 2011.

"I like to be close to them. I asked them about everything. Every day, I learned something different," Ramos said. "Kurt knows a lot. He has a lot of experience. He helped me a lot. I saw him play and I learned a lot.

"I know it was a hard moment for the team, because he was a good player, good teammate and he had a pretty good relationship [with everyone] here. We will suffer for that, but we need to understand that this is a business. We have to respect the decision."

Ramos is having a solid season, hitting .292 with eight home run and 31 RBIs entering Friday's action against the Royals. After missing so much time due to hamstring injuries this season, Ramos said he is healthy and is ready to play every day.

"This is an opportunity to play more. That's a big responsibility for me. I'm ready to take it," he said.

Nats would listen to trade offers for Haren

KANSAS CITY -- Nationals general manager Mike Rizzo said he would listen to trade offers regarding right-hander Dan Haren. Rizzo would want a lot in return, however.

The Nationals have already placed Haren on revocable trade waivers, but he cleared waivers and can be traded to any team.

"We would certainly listen. I wouldn't do my job if we didn't. We would have to get ourselves a good package of players for us to consider moving him," Rizzo said.

Haren said he is not thinking about his future with the Nationals. He is only thinking about Sunday's start against the Royals. A few weeks ago, however, he felt he would not be back with the team because of his overall performance. In 24 games, Haren is 8-11 with a 4.64 ERA with one save.

"Whatever happens, happens. It's out of my control," Haren said.

Espinosa may not earn September callup

KANSAS CITY -- The Nationals are expected to promote their September callups in a little over a week and there is a possibility second baseman Danny Espinosa won't be one of them.

Entering Friday's action, Espinosa is 49-for-268 [.202] with two home runs, 17 RBIs and 89 strikeouts for Triple-A Syracuse.

"It remains to be seen," manager Davey Johnson said. "He is not making the adjustments we were hoping he would make. He is a tremendous talent. That decision will be made probably in the middle of the week."

General manager Mike Rizzo will make the final decision if Espinosa will be back in the big leagues this year. If he does, Espinosa most likely will not play every day. Anthony Rendon will remain the everyday second baseman.

Bill Ladson is a reporter for MLB.com and writes an MLBlog, All Nats All the time. He also can be found on Twitter @WashinNats. This story was not subject to the approval of Major League Baseball or its clubs.