Arsenal 1-2 Chelsea: 3 reasons why Arsenal lost | Premier League 2019-20

#1 Frank Lampard's vital substitutions

All three substitutions from Lampard worked to his game plan

After going behind in the early stages of the match, Frank Lampard decided to withdraw Emerson in favour of bringing on Jorginho. Eventually, the Italian went on to level the game for his side and dent Arsenal's hopes of getting all three points.

For his second substitution, the former Derby County manager introduced a youngster, Tariq Lamptey. Given that Chelsea were pressing up high and dominating the game, the 19-year-old defender had opportunities to contribute to the attack. During the 31 minutes on the pitch, Lamptey made one key pass and won three out of four duels.

With barely 20 minutes left, Callum Hudson-Odoi made his appearance as the final substitute. The introduction of the 19-year-old troubled Arsenal's defence line and indirectly changed the result of the match. All three substitutions were made with a clear intent from Lampard. The manager knew exactly what he was doing and what he wanted from each player. His tactics paid off and his team deserved to win this hard-fought battle.

---