Manager Antonio Conte praised the impact of his substitutes as Chelsea again left it late to strike for victory.
The Blues had beaten West Ham United on Monday via a late Diego Costa goal, and the Spain international again produced the goods three minutes from time against Watford, as Conte’s side came from behind to win 2-1 at Vicarage Road.
Etienne Capoue fired the hosts ahead 10 minutes into the second half before the Chelsea manager reacted, introducing Victor Moses, Michy Batshuayi and Cesc Fabregas from the bench.
Summer recruit Batshuayi levelled with his first goal for his new club after Heurelho Gomes failed to deal with an Eden Hazard drive.
And then Fabregas, seemingly down the pecking order, produced a superb pass to meet the run of Costa – and the striker coolly stroked home to a second successive late win.
Asked about the impact of his replacements, the Italian said: “Good impact. But it was the same against West Ham.
“It’s normal because you push during the game for 70 minutes, usually the opponents pay for their efforts at the end of the game. When new players come on, there is a great impact.
“I’m pleased for Moses, Cesc and Batshuayi because their impact was very good. It’s important for me, this, because it shows a great spirit, the right attitude and commitment.
“When you don’t start the game (well), usually you’re not happy. The manager must choose the starting XI and then find a solution during the game. In these two games, we saw this.
“I’m pleased for the right commitment, attitude of the players, the right spirit. It’s a good family and a good team.”