SAINTS boss Russell Martin confirmed midfielder Stuart Armstrong will miss the visit to Blackburn Rovers with a concussion. 

The 32 year old has not missed a Championship game so far this season, recording 38 appearances in the league. 

Armstrong threaded the ball for his namesake Adam Armstrong to give Saints the lead in the eventual 3-2 defeat at Ipswich Town. 

However, he took a blow to the head in a clash with Tractor Boys midfielder Massimo Luongo and has been ruled out this weekend. 

"Everyone is pretty good but we are without James Bree, who is suspended," Martin said. 

"Stuey Armstrong is concussed so he will be out of tomorrow. He took a big whack to the head with Massimo Luongo. 

"He wasn't feeling great in the second half, a bit groggy. He has been assessed and we have followed the procedures.

"We hope to have him back for Tuesday but he needs to pass his tests and examinations before with the doctors. 

"Stuey will miss tomorrow, I haven't really seen him this week - he has come in, done his assessments and then been leaving.

"We have to follow the protocol so he will be out tomorrow but we hope to have him back for Tuesday."