This will be their first meeting.
Opelka has been serving really well and beat Anderson in the last round in 3 sets. He got through his opening match in 2 tie breaks against another American Chris Eubanks.
Young has been favourite in both his matches but lost the 1st set each time and then went to a tie break in both 2nd sets! He is a little lucky to have got through that scenario twice.
The sets will be close as long as Opelka continues to serve well and I expect him to take a set. The value is on him.
Ideally we want to lay Young around 1.20 to 1.25 in the early games.