Etcheverry edges out Norrie to reach Barcelona Open semi-finals
Etcheverry, ranked 30 in the world, one place higher Norrie, edged a tight match 7-6(4), 7-6(1).
He will face either third seed Casper Ruud or the Italian Matteo Arnaldi, ranked 40 in the world, in the semi-finals.
The first set produced a break each before the Argentine held the upper hand in the tiebreak. The second set went with serve all the way to the tiebreak which Etcheverry, a semi-finalist in Houston at the start of the month, won comfortably.
"I spoke to my coach last night and also my team, that I have to play aggressively to win this match," the 24-year-old Etcheverry said.
"The tie-break was key. I played really good in that part of the match."
Norrie had won their only previous contest, also on clay, in Buenos Aires last year.