Petkovic has won all 3 of their previous matches. Their last one was in March last season. She won on a hard court in straight sets. Their only clay match went to 3 sets in 2014.
Petkovic has been struggling a little with her game recently. She has lost in the fist round in Stuttgart for the last 2 seasons.
Mladenovic has also not been in the best form winning just 3 of her last 10.
I see a little value on Mladenovic as the better clay player. We have a good chance of seeing 3 sets.