Bullpen coach Chuck Crim watches Seth Rosin on Tuesday.

Bullpen coach Chuck Crim watches Seth Rosin on Tuesday.

By Jon Weisman

It’s coming down to the wire for Seth Rosin, though there’s always the possibility of the wire inching forward.

In other words, a roster decision will have to be made by Sunday afternoon on the 6-foot-6 righthander — unless it doesn’t.

The Dodgers can’t send Rosin to the minors, so when they trim the active roster to 25 players, they will have to carve out a slot for him, make a separate deal with the Philadelphia Phillies to keep him, or lose him. A late trip to the disabled list by a fellow pitcher could buy some time, but that’s an if-and-when.

That leaves a lot to swirl around in the 26-year-old’s head, but checking in with Rosin before Tuesday’s workout, his head seemed to be in the right place.

“I was talking with my good buddy Eric Decker, who was one of my roommates in college, and he said, ‘All you can do is work really hard,'” Rosin said. “Working really hard and busting your butt kind of takes the pressure away. So I’m kind of taking that approach this whole spring, and it’s been working so far.”

It’s been a bit of a whirlwind for Rosin, who was born 13 days after the Dodgers won their last World Series in 1988. The success he’s had this spring (1.64 ERA, 12 strikeouts against 13 baserunners in 11 innings) would be enough to get anyone excited, but it has come while he’s been in the process of transforming his pitching approach.

Pitching coach Rick Honeycutt counsels Rosin.

Pitching coach Rick Honeycutt counsels Rosin.

“Just the timing with my delivery and incorporating my lower half and having a good strong front side — just a lot of the things that pitchers work on,” he said. “I’m just kind of totally reinventing myself with my mechanics this spring, so I’m just going to keep going about that. I think I’m a pretty good listener and pretty coachable, so I’m just trying to take in every piece of knowledge and trying to be a sponge this spring and it’s been helping.

“I know I’m not a finished product, and the coaches will attest to that as well. I’m still working on a couple things that I know once I master those parts, then I think I’ll really be something special. I’m just going to keep going about it every day, and working with (Rick) Honeycutt and (Chuck) Crim and all the other pitchers, just keep working hard.”

Though he appeared in the Thursday exhibition against Team Australia, Rosin was the only pitcher on the 25-man active roster for the first two official games against Arizona that didn’t enter either game, but Rosin is practicing patience.

“I’m just happy that we started off 2-0,” he said. “Yeah, I was looking forward to getting my debut, but hopefully I’ll get a shot this weekend in these exhibition games and hopefully I’ll stick around for games after that. We’ll just have to see. This week’s going to determine a lot for me, so I’m just gonna have to keep working hard and go about my business.”

Rosin knows that however long it takes him to get in to his first Major League game — whenever and wherever that might be — he can’t afford not to be ready.

“There aren’t excuses in this game,” Rosin said. “You’ve got to perform when your name is called, and that’s what I’m going to do my best to do.