The Lugo Open 2018 staged its first men's quarterfinals with the number 3 and 7 seeds going face to face: Matías Díaz - Alejandro Galán vs Juan Cruz Belluati - Juan Lebrón. Diaz and Galan didn't take long in causing problems for Lebron and Belluati on their serve but despite having four break points in the second game, they didn't convert any. In the seventh game, Lebron and Belluati broke at their first opportunity to take a 4-3 lead. Galan and Diaz were being punished for their unforced errors but were handed a lifeline as Lebron and Belluati failed to serve out the set at 5-4. The set went into a tiebreak and Lebron/Belluati recovered from that blow to win (7-6). In the second set, Diaz and Galan reacted with a break in the third game but were broken back in the very next game. Another tremendously even set was contested and this time Diaz and Galan would bag it with a late break to win 7-5. This was a clear blow for Lebron and Belluati who started off the third set by losing their serve. They broke back, as they did in the second set, in the following game. The set went to the wire again and a colossal Ale Galan emerged in the eleventh game to break and win it 7-5 to reach the semis.