Gabriel's second-half goal was enough to keep Arsenal top of the Premier League with a 1-0 win at Chelsea on Sunday that further underlined the Gunners' title credentials.
The Brazilian centre-back was on hand to steer in a corner from Bukayo Saka in the 63rd minute at Stamford Bridge following a largely dominant performance by the visitors against a toothless Chelsea side.
The win lifts Arsenal back atop the standings, two points ahead of Manchester City, which had taken the overnight lead with a last-gasp win against Fulham on Saturday. It also sends an even stronger message to City that Arsenal is likely to be their main challenger for the title this season after adding this result to previous victories against Liverpool and Tottenham.
For Chelsea, though, it was another disappointing performance that will add to pressure on manager Graham Potter, especially coming off a 4-1 loss at his former club Brighton last week.