Here's how we rated the players.
5. Ethan Laird - 7.5
A problem every time he was on the ball. Gave Dominic Thompson a torrid afternoon.
6. Matthew Sorinola - 8
Another brilliant outing for Sorinola. A key man in both halves as Swindon failed to keep tabs on him. Set up Grigg's fourth.
7. Andrew Surman - 7.5
Along with Kasumu, ensured Swindon's midfield could get nowhere near the ball. Had an effort cleared off the line, but was furious with himself as he pinged one over the top.
8. David Kasumu - 7.5
Great again, stopping Swindon do anything constructive in the centre of the park. Excellent on the ball, quick to turn, tackled cleanly too.