I saw the matches from Elias in Bucaramanga and he seems in good shape, although he lost in R2. He´s confirmed for the tie so, i´m happy!
I believe he´ll play the doubles match, but not sure about the singles. If Machado is in good form, he should play at least one rubber.
Watching the match record for Semrajc, you can see he only plays clay tournaments. Is that a sign that he, or his body, doesn´t like hard courts?