Saka seals late win over Olympiacos and converts penalty vs West Ham

Bukayo Saka played a decisive role in two victories that underlined Arsenal's momentum this week, scoring a late substitute goal to seal a 2-0 Champions League win over Olympiacos on Wednesday and converting a penalty in his 200th Premier League appearance as Arsenal beat West Ham 2-0 at the Emirates on Saturday. The results extended Arsenal's winning run and left Mikel Arteta's side top of the Premier League briefly ahead of Liverpool's evening fixture.

At the Emirates on October 1, Gabriel Martinelli opened the scoring in the 12th minute after Viktor Gyokeres forced a save that pushed the ball across goal. Arsenal dominated for long spells but were kept nervous by several missed chances and a remarkable one-handed stop from goalkeeper David Raya, who parried a Daniel Podence volley over the bar. Mikel Arteta brought Saka on in the closing stages and the England winger doubled the lead two minutes into stoppage time, rifling a shot through the legs of Olympiacos keeper Kostas Tzolakis.

The match also saw a collision between defender Gabriel Magalhaes and Raya that forced Magalhaes off. Declan Rice, who did not start the game, was introduced around the hour mark, helping to...