PHILADELPHIA — Only 19 years old and a scant 61 years younger than his All-Star Futures Game manager, Nathan Flewelling has tried not to put a timetable on his potential big league debut.Going deep in a major league ballpark sure gives hope in Tampa Bay that Flewelling could fit in fine once he gets there.“I think I’m getting more ready every single day,” Flewelling said. “So I think it could be soon.”Flewelling hit a two-run home run and earned MVP honors, and the American League team managed by 80-year-old Larry Bowa needed only five hits to beat the National League 6-1 on Sunday in the All-Star Futures Game.Flewelling is rated the second-best prospect in Tampa Bay’s organization and was a third-round pick in the 2024 amateur draft. Flewelling and Theo Gillen — Tampa Bay’s top-rated prospect — combined for three RBIs in the seven-inning game that included most of minor league baseball’s best players.Flewelling catches for Class-A Bowling Green and the 20-year-old Gillen is an outfielder for Double-A Montgomery.Flewelling has kept an eye on the standings with the Rays in first place in the AL East.“I’m really willing to impact the race,” Flewelling said. “I’m excited to get up there one day and hopefully help them out.”Phillies minor …