Robbie, who will skipper the Republic in the European Championship qualifier, scored his first and only senior international hat-trick so far in a 5-0 win against San Marino in November in the final international before redevelopment at the famous old Lansdowne Road.
Ireland's record goalscorer, Robbie became only the third player in Irish football history to score three goals at the Dublin ground - John Aldridge (twice) and David Connolly the others.
San Marino's Serravalle Stadium will be a completely different experience to that emotional night - it holds just 5,000 in two stands either side of the pitch, and is in a picturesque setting, surrounded by rolling hills.
Robbie, also vice-skipper here at the Lane, was unconcerned: "The players are used to such places because we grew up playing on small grounds.
"Obviously, it's great to play in big stadiums and in front of big crowds, but this won't be a problem.
"We're simply out to get a result and that's the most important thing, so we don't worry about it."
Robbie Keane will be more than happy if he can repeat his last performance against San Marino when the Republic of Ireland face them again tonight.