Terry Collins has a message for those seemingly jumping the gun on Dillon Gee replacing  the injured Jonathon Niese as the Mets opening day starter: Not so fast.

Collins told the New York Daily News that his decision will be made this weekend. Among the candidates could be impressive 23-year-old southpaw Zack Wheeler, who boasts a sparkling 0.84 ERA in 10 2/3 innings this spring.