Scotland prop Alasdair Dickinson gave Scotland an injury scare ahead of their first Test in Argentina on Saturday.
Gloucester prop limps out of training in build-up to Puma test.
Scotland prop Alasdair Dickinson limped out of training to give Frank Hadden cause for concern ahead of their first Test in Argentina on Saturday.
The 24-year-old suffered a heavy knock to his knee during training on the third day of Scotland's tour of Argentina.
Gloucester man Dickinson could not complete the session at the GEBA club and had to be taken for tests by Scottish medics.
Team doctor James Robson later cleared Dickinson to play against Argentina in the first Test on Saturday' at Gigante de Arroyito Stadium in Rosario.
Hadden will now consider Dickinson's fitness and his other options after watching his side train and will announce his team for Saturday's game on Thursday.
Fresh start
Gloucester full-back Chris Paterson hopes the tough two-Test tour of Argentina will provide a fresh start in the build-up to the next World Cup.
"They are two very important games for us. Scotland is under a lot of pressure as we had a poor Six Nations," said Paterson.
"This is a start point ahead of the next World Cup."
Paterson is one cap behind Scott Murray as Scotland's record cap holder and he hopes his experience can help the younger players in the squad.
"It is a responsibility to be one of the most experienced members (of the squad), but a good one," he added.
"However, I think I have a lot to learn yet and I hope to learn valuable things in these two weeks.
"I talked with the youngest players about this. I think it could be useful for them to hear some advice. But, most of the time they are the wise ones."
Tough
The 30-year-old knows the Pumas are a tough nut to crack after facing them twice, including at the last World Cup in France.
"We should play better than in France," Paterson added. "Then, Argentina did a great job, with a lot of confidence.
"I was really happy for the Pumas reaching the semi-final, but sad at the same time because unfortunately they eliminated us on the way.
"There is a lot of work to do and I am confident in improving our performances here. We have to play very well. Argentina are third in the world and a very tough rival.
"To win we have keep the ball, retain possession and be very, very patient.
"The Pumas have a very strong defence and played a very quick game so it will be counterproductive to let them show their skills in front of their fans."
