Sources: Signore will replace Viola

PORT ST. LUCIE, Fla. -- The Mets will name Tom Signore as the new pitching coach at Triple-A Las Vegas, multiple sources told ESPNNewYork.com.

Signore will step in for Frank Viola, who will require open-heart surgery next Wednesday.

Signore, 52, originally had been slated to serve as Brooklyn Cyclones pitching coach. He was hired this winter after previously working for the Toronto Blue Jays, including the past three seasons as pitching coach of Double-A New Hampshire.

Signore is a one-time minor-league teammate of Mets special assistant J.P. Ricciardi.

Ron Romanick's name originally had been floated as the potential replacement, but he will remain minor-league pitching coordinator.