Port Vale completed their first league double over Walsall in living memory thanks to a second-half penalty.
The winner came from winger Jennison Myrie-Williams in the 52nd minute after striker Tom Pope was fouled in the box.
Manager Micky Adams brought in Carl Dickinson for Joe Davis and Chris Birchall for the suspended Chris Lines. But the first-half was a largely even affair with the lively Birchall having Vale’s best chance.
However, Vale upped their game in the second period and when Paul Downing fouled Tom Pope in the box, Myrie-Williams made no mistake from the spot to score his tenth of the season.
Walsall countered after that and Vale were indebted to young keeper Sam Johnson who kept Vale’s lead intact with a couple of saves. But Johnson and his defence managed to hold firm to record a rare clean sheet and earn Vale an extremely rare double over their old enemy.
Vale: Johnson, Duffy, Robertson, Dickinson, Jones, Myrie-Williams (Taylor), Knott (Dodds), Birchall, Loft, Pope, Tomlin (Williamson)
Subs: Yates, Davis, Griffith, Hugill
Attendance: 5,569 (649 away)