LaMacchia, who entered the season as one of the country's top pitchers, has not pitched since facing Stanford Feb. 7. LaMacchia has experienced pain and tenderness in his right elbow and a recent MRI indicated a possible ligament injury.
The Seminoles are at home Tuesday and Wednesday against St. Joseph's and open Atlantic Coast Conference play this weekend against Virginia at Dick Howser Stadium.
"He's going to throw a bullpen (Tuesday)," FSU coach Mike Martin said Monday.
"He will throw 30, 40 pitches. If he can throw without pain, we will try again a couple of days later. We will keep monitoring him until he can go out there and throw 50 pitches. And then we would put him in a relief role. Basically, he would have to go through a spring training regiment where he would be on a pitch count every night out there until he's ready to get back."
Martin expects it to take LaMacchia at least a month to return to the rotation if his throwing session goes well Tuesday.
Freshman Mark Sauls (3-0) is scheduled to start against St. Joseph's Tuesday.