Falla is playing at Memphis this week. He will face Sela in the 1st round. They have only played each other once before, in the 2nd round of the Binghamton Challenger in 2005.
Good luck to Alejo here
. He had some good results at indoor events during the end of last season, including reaching his first ever ATP semi-final at Lyon, and reaching the final of the Brastislava Challenger (which had a pretty strong field) not long after. He has shown that he can play well under a roof, and Sela shouldn't be underestimated, but that is definately a winnable 1st round match for him.