Maria is a tough cookie, no doubt. But Elena proved yesterday how much of a tougher competitior she is.
Serena, Justine and Elena are the most deadliest, steely competitors.
I'm more concerned as to how Elena's body will react. Elena is not friendly with Maria, so its not the typical all Russian match up. If anything, her desire to beat Maria, may help her push past the nerves.
Elena's serve is the key for Maria, can she hold serve if she breaks Elena? Her serve looked shaky against Martina.
Finally, if it comes to a third set, its about mental strength (check Elena) and physical stamina (check Elena). Elena can run faster than Martina and hit a hell of a lot harder to get shorter replies from Maria.
Maria has the weapons to break down Elena's attack, including the BH.
Its going to be who wants it more. Maria will want it too much IMO and overpress. Elena will begin to take control, which is why in the other thread, I voted Elena in three.
Good luck Elena. I am looking forward to this matchup