Scotland prop Jon Welsh has been ruled out of the rest of the RBS 6 Nations after fracturing his hand in Sunday's defeat to Wales at Murrayfield.
The Scottish Rugby Union has confirmed the 28-year-old Glasgow Warrior will now have to undergo surgery and will play no further part in the championship.
Welsh touched down for Scotland in the final seconds but his try was not enough to prevent Wales clinching their eighth successive win over the Dark Blues with a 26-23 victory.
Welsh will now miss the February 28 clash with Italy in Edinburgh, the trip to Twickenham to face England on March 14 and the tournament closer with Ireland at Murrayfield a week later.
The Scotland medical team are also keeping a watchful eye over a number of other players.
Fellow prop Gordon Reid lasted just two minutes of the action on Sunday before he had to be stretchered off with a head knock and knee strain.
Although he is 'symptom free' from his bang to the head, given the nature of his injury, doctors are treating it as a concussion, meaning he will have to undergo the mandatory graduated return to play protocol.
His knee will be scanned at Spire Murrayfield Hospital on Monday and the outcome will determine the length of his stint on the sidelines.
Lock Richie Gray sustained an injury to his upper arm and will also be scanned at Spire Murrayfield Hospital before a further update is issued later this week.
Meanwhile, Sam Hidalgo-Clyne finished the game but later developed mild symptoms of a possible delayed concussion and will also be monitored by the Scots medical staff,
A spokesman added: "A number of other players have required treatment today and will be monitored by both the Scotland, and respective club medical teams."
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