Manchester United manager Sir Alex Ferguson has paid tribute to Darren Fletcher after his return to form at Old Trafford.
The Scottish international missed the later stages of last season with a mystery illness, and was also left out of the pre-season party for the tour of America over fears that the virus may strike again.
However, the 27-year-old quickly shook off the problem at the start of the campaign, and Ferguson believes the added responsibility of captaining his country has had a positive impact on Fletcher's performances for club and country.
"I think captaining Scotland and getting to the World Cup will be a big drive for Darren," he told the Scottish Sun.
"He is a good lad. He is a committed person who sacrifices everything for the game. He is doing very well."
Ferguson also spoke on the lack of Scottish players coming through the academy at Manchester United, something he'd like to resolve in order to help international manager Craig Levein for 2014 World Cup qualifying.
However, the Red Devils chief believes Rangers and Celtic are now in a position to take the best the country has to offer, something that will stop players following in Fletcher's footsteps.
"I don't have any young Scots coming through at youth level. We have never been great with young Scots anyway because Celtic and Rangers get them at 14 before we can," he added.
"We did have Darren Fletcher at the age of 14 or 15 and we'd a lot of Scots until the academy system started and we can no longer take them down.
"If Celtic or Rangers get them before the age of 16 then there is no chance for us anyway."