PLYMOUTH boss Ian Foster suffered a first Championship defeat since replacing Steven Schumacher as Argyle head coach. He congratulated Sunderland on a “wonderful second-half performance”, but was critical of referee Anthony Backhouse. Foster was frustrated at the fact his side were down to ten men when Jack Clarke scored the home side’s second goal with midfielder Adam Forshaw having received treatment for an injury. He said: “My understanding is a player has to spend 30 seconds off the pitch, which he did, and they won’t allow him on. COSTLY: I...