In Dubai, where Bublik needed to defend his ranking points from last year's final (330 points), Alexander lost to Canada's 21st-ranked player Felix Auger-Aliassime in the first round with a score of 6:7 (7:9), 7:6 (7:4), 3:6, according to Sports.kz.
As a result, he earned only 10 points from the tournament.
In the live ATP rankings, the four-time association tournament champion Bublik has now dropped to the 81st position. In the current season, Alexander has played nine matches, suffering seven defeats.