The No 3 seed and the Croatian are among the early names that are through to the quarter-finals in Dubai.
Roberto Bautista Agut and Borna Coric triumph: ATP Dubai Duty Free Tennis Championships Day 3 updates
Roberto Bautista Agut overcame a wobble to book his place in the last eight of the ATP Dubai Duty Free Tennis Championships.
The third seed had won the first set against Frenchman Pierre-Hugues Herbert, but dropped the second set on a tie-break.
But the Spaniard, who was runner-up at the Mubadala World Tennis Championship in December in Abu Dhabi, charged through the final set to clinch a 6-4, 6-7, 6-1 success.
He will meet Borna Coric in the quarter-finals on Thursday.
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Dubai Tennis Championships Day 2 updates: Pouille wins, but Gasquet stunned
ATP Dubai Duty Free Tennis Championships: Everything you need to know
Coric keeps his charge going
Borna Coric has gone well in Dubai in the past, reaching the semi-finals most famously in 2015 when he defeated Andy Murray on his route to the last four.
The world No 50 is now one match away from repeating that feat after he defeated Benoit Paire 6-1, 6-4 in their second-round encounter.
The Croatian had shocked No 5 seed Richard Gasquet in the opening round.