Fifth seed Christopher Eubanks thundered 10 aces and saved all four break points he faced to defeat fellow American Steve Johnson 6-1, 6-4 to advance to the Dallas Open second round Tuesday.

Just four spots away from his career-high Pepperstone ATP Ranking of No. 29, Eubanks collected his third match win of the year and will next attempt to win consecutive matches for the first time this season when he plays Australian James Duckworth, a 7-6(3), 6-1 winner over American Zachary Svajda.

#NextGenATP American Alex Michelsen set up a second-round showdown with top seed Frances Tiafoe following a 6-3, 3-6, 6-1 win over veteran American qualifier Tennys Sandgren, who appeared to be hampered by a back complaint.

"I served really well today," said Michelsen, who fired 12 aces according to Infosys ATP Stats. "He brought a very good level and I had to compete with that the entire time. I played well off the ground... and my level raised in the third set for sure.

"I'm just off the court so I haven't had a chance to think too much about my next match, but Frances is a Top 15 player so obviously it's going to be a very tough match."

Another American, Michael Mmoh, advanced to the second round after dropping just four points on his first serve according to Infosys ATP Stats against countryman, qualifier Emilio Nava, winning 7-5, 6-2.

This rally had everything 🤩@MichaelMmoh gets the better of Nava 7-5 6-2 to set up a clash with Ben Shelton 👀@DALOpenTennis | #DALOpen pic.twitter.com/i9TNiuJvB6

— ATP Tour (@atptour) February 6, 2024