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5/26/2014 6:53 P.M. ET

Hundley has eventful first start with Orioles

MILWAUKEE -- Nick Hundley, acquired over the weekend from San Diego, made his first start for the Orioles in Monday's series opener against the Brewers.

It turned out to be an eventful afternoon, as Hundley delivered the go-ahead run in the 10th inning as the Orioles won, 7-6. Hundley, who went 1-for-5, also made a throwing error in the ninth that allowed the Brewers to put runners at second and third with one out, after the Orioles had rallied for two runs to tie in the top half. But the Orioles got a double play to end the inning, setting up Hundley's game-winning hit.

"Think about the first time a guy gets traded, it's a big change in his life," Orioles manager Buck Showalter said of Hundley, who joined the team on Sunday after Saturday's trade that sent Troy Patton to the Padres.

"They had three good catchers [in San Diego]. Think they were the only team in baseball with that. And now us. Obviously we are going to have to make an adjustment on our roster tomorrow. But I think he knows there's an opportunity here. It's no reflection on what we think is going to happen with Matt [Wieters]. It's another testament to our ownership stepping out, because it is an addition to our payroll."

The Orioles are expected to activate Chris Davis off the paternity list on Tuesday and the club also has catchers Caleb Joseph and Steve Clevenger, with Clevenger a left-handed hitter and Joseph a righty like Hundley. There's a good chance the O's option Joseph to clear a roster spot, but Showalter said it's not impossible that the club carries three catchers during the InterLeague series, especially with Clevenger and Joseph both able to play first base, if needed.

Reliever Preston Guilmet was added in Davis' place on Sunday but doesn't necessarily have to be the guy to go, per the paternity list rules.

New daddy Davis to return on Tuesday

MILWAUKEE -- Chris Davis and his wife, Jill, welcomed a baby girl on Sunday night around 6:15 p.m. ET in Baltimore, and the first baseman will rejoin the Orioles in Milwaukee on Tuesday morning.

It is the couple's first child, as Jill had labor induced on Sunday, with Davis going on the paternity list as a result.

"Everything went well, great," manager Buck Showalter said on Monday morning. "I promised him before we left, I said, 'Listen, don't feel like you have to text me and do this and do that. I'll leave you alone, if i don't hear from you I'll see you Tuesday in Milwaukee'. He said great. Then on the plane [after Sunday's game] I texted him, I said, "I lied. I'm dying to know how everything went.'"

Players can stay on the paternity list up to three days, but Davis will come off early and is expected to play in Tuesday night's game against the Brewers. Steve Pearce got the start at first base on Sunday and Monday in his place.

Reynolds still has fond memories of Orioles

MILWAUKEE -- Despite the fact that that Monday's series opener marked Baltimore's first trip to Milwaukee since 2008, there were still several familiar faces for the Orioles at Miller Park, including closer Francisco Rodriguez and infielder Mark Reynolds.

A very popular guy in the O's clubhouse, Reynolds faced his former club last year as a member of the Yankees and joked that he was upset shortstop J.J. Hardy -- whose Brewers number he's wearing this year -- backed out of dinner after Monday's game.

"I keep tabs with them on TV as much as I can," Reynolds said of an Orioles organization he played for in 2011 and '12. "I get the 'cut the cord' thing from my teammates, but with the run we had in 2012 and as close as we were, It's rare you form friendships like that. And it's always good to see them."

Brittany Ghiroli is a reporter for MLB.com. Read her blog, Britt's Bird Watch, and follow her on Twitter @britt_ghiroli. This story was not subject to the approval of Major League Baseball or its clubs.