The Glasgow flanker started in three of Scotland's Six Nations matches and he say's tomorrow's PRO12 game will be every bit as intense.
In today's Evening Times, Rob said: "I don't believe there will be any drop off from the intensity and physicality of a Six Nations fixture. If you look at both sides there are so many internationals in them that the quality will be right up there.
"Also when you look at Glasgow's results during the Six Nations period, then we have picked up maximum points for the first time ever and that underlines just how good the depth in our squad is now.
"But when we go to Leinster we always know that we will face the biggest challenge out there in European rugby and this will be no different. We are sitting top and Leinster are third, just two points behind us and Ulster.
"They will be determined to get back in the top two so they can earn a home semi-final play-off slot. This is their home game and so it is the perfect opportunity for them to get one of those places. We know just how fired up they will be tomorrow night."