Wheeler is scheduled to throw a simulated game Monday, Tim Britton of The Athletic New York reports.
Wheeler will throw a one-inning simulated game Monday then is scheduled to start Thursday's Grapefruit League game. He'll replace Jason Vargas, who was recently diagnosed with a non-displaced fracture in his non-pitching hand and could miss time if he opts to undergo surgery. Prior to Vargas' injury, Wheeler had been on track to begin the season in the Mets' bullpen. However, the 27-year-old righty may open the year as the club's fifth starter if Vargas ends up missing time. So far this spring, Wheeler has allowed six runs on 15 hits and two walks -- with 11 strikeouts -- over four games (eight innings).