If all goes well, Masset will throw one inning on Monday for the Arizona League Reds.
"It's been good. He's done everything we've asked him to do -- bullpens, live batting practice and has come through them well," Reds pitching coach Bryan Price said Friday afternoon.
The reports Price have seen are positive from Arizona League Reds coach Derrin Ebert.
"He's shown some resiliency, which is the important part," Price said. "He's probably where you'd hope he would be before his first Spring Training outing."
That means Masset has at least five or six appearances to go before he might be cleared to return sometime in August.
"If he's healthy and activated in August, he's got to be able to assume the same responsibilities as anybody else in the bullpen," Price said. "We can't pitch him and then give him two days off because he's still considered a rehab. We don't have that luxury."