Phillies manager Ryne Sandberg and pitcher Ken Giles said that the right-hander's back is fine and he'll be ready to go for Opening Day, reports the Philadelphia Inquirer.
Giles faced four batters on Saturday, giving up two runs on two hits with one walk. The 23-year-old posted an ERA of 1.18 with 64 strikeouts and 11 walks in 45 innings pitched last year.