Mets designate Brad Emaus

NEW YORK -- The Mets have pulled the plug on Rule 5 pick Brad Emaus.

Days after manager Terry Collins said the second baseman had a limited number of at-bats to prove himself, Emaus was designated for assignment Tuesday. Justin Turner has been promoted to take his place.

The Mets cut veteran Luis Castillo late in spring training, eating a chunk of his remaining contract. Emaus ended up being the Mets' opening day second baseman.

Emaus hit .162 (6-for-37) with one RBI in 14 games. He must go through Rule 5 waivers before being offered back to the Toronto Blue Jays for $25,000 -- half the claiming price. At that point, the Mets could trade for Emaus, if interested, and place him in the minors. But a Mets source said that scenario was unlikely.

"I started seeing frustration in him a little bit and that bothers me, it scared me a little bit," Collins said. "One thing you want to be careful of at this level and that is putting a young player in a situation where he fails. Because when doubt starts to get in his mind, it could be a long road back. So I saw it, I was sensing it and I did not want him to be a bench player. I just didn't think it was fair to him or fair to us."

Turner, 26, hit .300 (12-for-40) with two RBIs in 10 games for Triple-A Buffalo.

"This is my fourth time being called up. You still kind of get excited about it and get that little feeling in your gut," Turner said.

The Mets still have one Rule 5 pick remaining -- right-handed reliever Pedro Beato. He will become Mets property if he spends the entire season on the major league roster. The last Rule 5 pick to stick an entire season with the Mets and become team property via that route was catcher Kelly Stinnett in 1994.

General manager Sandy Alderson referred to second base Tuesday as "an evolving situation."

Turner got the news about 9 a.m. and arrived in the Mets' clubhouse nearly three hours before game time after some flight complications. He was glad to leave Buffalo, where the Bisons were snowed out Monday.

"I'm excited. I woke up this morning ready to play down there, so I guess I just got a little extra rest," he said. "I feel ready to go."

Alderson deputy J.P. Ricciardi had been a particular advocate of Emaus, having drafted him while general manager of the Blue Jays.

Adam Rubin covers the Mets for ESPNNewYork.com. Information from The Associated Press was used in this report.