Mets manager Terry Collins said Friday that Johan Santana (shoulder) is behind in his long-toss program. Collins also said that Santana will stay in Florida when the rest of the team heads north for the start of the season. "He's not where he needs to be in his long-toss program," said Collins. "Even if it's next week, he's not going to open with us. He's going to have to get himself ready. And that's going to certainly determine on a daily basis where he's at. But we'll be gone. I'll have to monitor it by the phone." Santana hasn't thrown off a mound since March 6 due to a lack of shoulder strength and isn't anywhere close to game-ready. Jeremy Hefner is expected to take his spot in the rotation.