The 27-year-old stand-off replaced Dan Parks of Glasgow Warriors in the 18-12 win over England at the weekend.

The former Edinburgh Rugby player teamed up with fellow replacement Chris Cusiter to repel the world champions in the closing 15 minutes at Murrayfield.

But the Leeds Tykes man had also previously played as a replacement against both France and Wales in the RBS 6 Nations Championship.

Ross concedes he made some errors following his arrival on the pitch against France.

However, he believes the half-back partnership with British & Irish Lion Cusiter is reaping dividends ahead of the trip to Ireland a week on Saturday.

Ross said: When you come on with 15 minutes to go when the team are leading, you are sometimes in a no-win situation.

If you win the game, it has already been won, but if you lose, it is your fault.

But I was very pleased with my contribution against England.

I made a few mistakes after I came on against France but against England Chris and I worked well together and managed to shut the game out, which was our job.

And Ross believes the hard work on the training ground is also paying off under Scotland head coach Frank Hadden.

The fly-half is convinced the successful training methods and the clear message of Hadden has seen an upturn in Scottish fortunes.

Ross added: The good thing has been we are training very well.

There are no faults and we fully understand what Frank Hadden wants from us.