Mets prospect Lastings Milledge has been promoted, the team announced this afternoon. Milledge will be at Shea Stadium tonight. Milledge, a rare combination of speed and power who's considered the team's top prospect, takes the place of rightfielder Xavier Nady, who had an appendectomy after Monday's game against the Diamondbacks. Nady, who's also suffered from back spasms recently, is being placed on the 15-day disabled list. Milledge will play in his place. The Mets have said they wouldn't call him up to sit him on the bench.