Alexander Blockx 2026 US Open Quarterfinal Match Worn and Dual Signed Sneakers | Additionally Matched to Round of 16 Match

Presented in this lot are Alexander Blockx match worn sneakers from the 2026 US Open Quarterfinal against Karen Khachanov at Arthur Ashe Stadium on September 9, 2026.

Khachanov was leading Blockx with a score of 6-2, 7-5, 3-2, before Blockx retired due to injury.

These sneakers were also worn by Blockx during the 2026 US Open Round of 16 against Francisco Cerundolo at Arthur Ashe Stadium on September 7, 2026.

Blockx defeated Cerundolo with a score of 6-3, 4-6, 7-5, 7-5.

At the 2026 US Open, where he entered as the No. 28 seed, Blockx made history as the first Belgian man to reach the tournament's quarterfinals. His run included victories over fifth seed Flavio Cobolli and Argentina's Francisco Cerúndolo. With the result, he also became just the fourth Belgian to reach the quarterfinal stage of a Grand Slam event and the youngest Belgian major quarterfinalist since the start of the Open Era in 1968.

The sneakers were secured on-site and authenticated by a Sotheby’s representative immediately following the match.

These sneakers were signed by Blockx.

The sneakers are photomatched by PSA.