Stand-off Finn Russell has been ruled out of Scotland's summer tour of Japan as he continues his stay in hospital in Ireland.

The 23-year-old remains under observation after suffering a head injury in the Guinness Pro12 play-offs — but he has been told he does not need surgery.

The Glasgow back went off in the first minute of his side's semi-final defeat by Connacht in Galway on Saturday after a clash of heads with team-mate Zander Fagerson.

Head coach Gregor Townsend described it as a "very serious injury" and the Scottish Rugby Union has confirmed he will miss the two-match tour of Japan.

A Warriors statement added: “However, his condition has improved significantly over the last couple of days and it’s been confirmed that he does not require surgery.

“Russell, who was transferred from University Hospital in Galway to Beaumont Hospital in Dublin, is expected to be discharged later this week. His return to training date will be determined when he is back in Glasgow.

“Glasgow Warriors would like to thank the Connacht medical team, players and staff for their support. The club would also like to thank the University Hospital in Galway and Beaumont Hospital in Dublin for all their help.

“Finn and his family really appreciate all the messages of support, with which they have been inundated.”

Vern Cotter’s squad meet up next Monday and play Japan on June 18th and seven days later.