BALTIMORE -- Now that Darren O’Day is officially back in the Baltimore Orioles' nest, he’s hoping to convince Chris Davis to stay, too.

Tuesday afternoon at Camden Yards, the newly mustachioed reliever spoke at a news conference to officially announce his re-signing with the club he’s been with the past four seasons. “Number 19 is actually a mustache enthusiast,” said O’Day of Davis, the free-agent slugger who’s been his teammate in Baltimore since 2012. “So, I’m hoping that maybe he’ll see a picture of this and think that he couldn’t stand not seeing it for a while.”

All-Star reliever Darren O'Day is attempting to be a closer for the Orioles. No,no, not out of the bullpen. He said he's trying to help seal the deal to keep slugger Chris Davis in Baltimore. Tommy Gilligan/USA TODAY Sports

Although O’Day’s mustache may be short-lived -- he says that he’d been cultivating a shaggy beard this offseason, but that a botched barbershop trim left him little choice -- his friendship with Davis is anything but. Before Baltimore, the pitcher and first baseman were teammates in Texas from 2009 to 2011. On Tuesday, much like the Orioles' front office has done over the past few months, O’Day made it abundantly clear that he’d like to keep his pal around for a few more years.

“Chris is a good friend of mine. Every free-agent situation is different and he’s got to do what’s right for his family. That being said, I’m going to do everything I can to get him to come back because I think he’s a difference-maker. He’s got a rare skill set that you don’t see everywhere, so he makes our team better. He’s a great teammate, a good friend, and I’ve been talking to him a little bit, just relating my experience to his.”

Following a season in which he went 6-2 with a 1.52 ERA and was named an All-Star for the first time in his career, the 33-year-old O’Day was widely considered the top free-agent reliever on the market. Thought to be headed to a deep-pocketed Washington Nationals team that was in dire need of a bullpen makeover, O’Day surprised everyone by inking a four-year $31 million contract with Baltimore, a deal that was made official on Monday.

Meanwhile, Davis, who led the majors in home runs for the second time in three seasons and has more bombs than anyone in baseball since coming to Charm City, is said to have passed on the seven-year, $154 million offer that the O’s reportedly made during last week’s winter meetings in Nashville.

Since then, the Orioles have taken their offer off the table. General manager Dan Duquette has repeatedly stated that he has a roster to build and as such, he can’t afford to wait for Davis and agent Scott Boras -- who’s known for letting the market simmer as long as possible -- to make a decision. However, Duquette has indicated that if Davis and Boras are inclined to resume discussions where the O’s left off (7/154), he’d be willing to listen.

When asked Tuesday whether there’s been any change in the discussions between the Orioles and Davis, Duquette said simply, “No” and added that he hopes to make a couple moves before the holidays, including the addition of a starter and a left-handed bat.

If Darren O’Day has anything to do with it, that left-handed bat will say “Chris Davis” on it.