The Phillies minor-league system took two big blows Friday afternoon.

Top catching prospect Lou Marson, who was up with the Phillies earlier in the season and traveled with the active roster during the playoffs last season, was placed on the disabled list with a bruised foot. Marson was hitting .232 at Triple-A Lehigh Valley.


Meanwhile, top infield prospect Jason Donald was scratched before IronPigs game Friday and may be looking at a longer layoff than Marson. According to a team source, there’s a “good possibility” he will undergo knee surgery to repair a torn meniscus.

Donald is hitting .230 with one home run and 25 RBIs in 50 games at Lehigh. If he has surgery, Donald, who is one of the team’s most attractive offensive trade chips, could be out of action for a month.