Alvaro Morata scored twice as holders Chelsea began their FA Cup defence with a 2-0 win over Nottingham Forest in a match where a tearful Cesc Fabregas appeared to bid farewell to English football.

The third round is the stage where top-flight clubs enter the world's oldest senior knockout football tournament and has traditionally been associated with upsets.

Both Morata and Fabregas have been linked with moves away from Stamford Bridge in the January transfer window, the latter is reportedly set to join a Monaco side managed by former Arsenal team-mate Thierry Henry.

Fabregas should have opened the scoring in the 30th minute but his poor penalty, after a foul on Ruben Loftus-Cheek, was saved by goalkeeper Luke Steele.

But two goals in the space of 10 minutes early in the second half from Morata, who had previously missed some clear chances, settled the tie.

Teenage prospect Callum Hudson-Odoi was the provider on both occasions, his cross to the near post setting up Morata for his first goal since November 29 in the 49th minute before the striker made it 2-0 with a header.