By Roger James

PLYMOUTH A 1 Edwards 56OXFORD UNITED 0Rating: ★★★★★ Ref: Ollie Yates 6/10STAR MANJOE EDWA RDS Plym outhCAPTAIN MARVEL: Plymouth’s Joe Edwards celebrates and, Inset, keeper Michael Cooper makes a savePICTURE: PSI/Stan KasalaSTEVEN Schumacher hailed Plymouth Argyle’s miserly defence as a sixth successive home clean sheet helped them to victory over play-off rivals Oxford United.Joe Edwards volleyed the 56th-minute winner from Ryan Law’s cross, which was chested into the skipper’s path by striker Niall Enni...