Armstrong was a regular in the Premiership season and has been a big asset to the team in his past. But injuries have kept out the 26 year old and has dinted his claim for a first team place.
Chris will join the Berkshire club due to passing a medical. He travelled down to Reading yesterday. The Royals didn't want to break the bank for Southampton's Andrew Surman who could have cost them up to £2m.
As soon as we get more on the deal we will publish it straight away.