The first part of this double features Fratangelo and Gasquet in the second round at Roland Garros, where they face each other for the first time. That means there's no head to head between the two players but there is plenty to go on here.
Gasquet has been playing reasonably well recently and has been unlucky to come up against the in-form Nishikori in the third round at both Rome and Madrid. He's looked good against players ranked below him during the clay court season and has a 7/3 win/loss record on the surface this year.
The young American Fratangelo took a while to find his feet on the senior tour, having impressed in the juniors. This season he has been in great form though and looks like he's matured greatly and now looks like being one of the leading American players for the next few years. He has a 14/4 win/loss record on clay this year, albeit most of these matches were on the Challenger Tour but he has beaten some experienced pros in that time. He also has form at Roland Garros, winning the junior title in 2011.
I do think that Gasquet will win this match, maybe even in three sets, but I don't see him blowing Fratangelo away.
The second part of this double features Lajovic and Troicki. These two have never played each other before, so again there's no head to head to go on.
Troicki had a great win in the first round against Dimitrov and will see this match as a prime opportunity to advance to the third round. Dimitrov seems to struggle at Roland Garros though and Troicki himself has been in very mixed form coming into this tournament, only winning three of his six matches on clay before this week. Having played five sets on Monday, I see him coming out a bit sluggish today.
Lajovic has not been in great form either, struggling a bit on his favourite surface of clay. He is a much better player than his record this year suggests - 10/9 win/loss record on clay - and his straight sets win against Kudla in the first round should give him confidence.
Both of these players are very consistent and won't blow each other off the court. I can see a lot of long rallies and a few service breaks in this one, so am happy to take the 4-7 odds on over 3.5 sets.