Massu over Montanes @ 5.5 with Pinnacle.
Local boy with 4-1 h2h (the one loss was a retirement. Last meeting six years ago, however.) and Montanes has no matches on clay this season and has done very poorly so far.
Perplexingly high odds, as far as I can tell.
Massu odds look like they could rise even further (Betfair, Pinnacle).
Adding Massu -1.5 sets @ 9.93 with Pinnacle.
Match line odds dropped quickly, shortly thereafter though.