So it's Falla in round 2. Hope Andy can get his AO form back on for Miami. Remember Falla had beaten Troicki at USO last year so he is a tough and aggressive player.
Raonic will prove a handful for Andy should they both get through to meet but Andy normally does well against big servers.
Yes, Istomin retired at 2-1 down in the 2nd set. Andy has already met Falla (plays LH btw) in the QF of the Farmers' Classic in Washington in July 2010 and beat him 7-6, 6-1, so he will know exactly what he has to do here.
And before we get excited about Raonic (myself included!) he too has still to play his 2nd round match.