Nigeria, Sept. 13 -- Bukayo Saka scored a late penalty as Arsenal maintained their perfect start to the Premier League season with a 2-0 victory over Sunderland on Saturday.

Bruno Guimaraes opened the scoring in the 55th minute with a stunning strike after David Raya had earlier saved Enzo Le Fee's penalty.

Saka then sealed Arsenal's fourth win in four matches from the spot in stoppage time after Sunderland's Reinildo was sent off for bringing down the Arsenal forward in the box.

The result keeps Mikel Arteta's side top of the table with 12 points.

Nigeria international Ola Aina played the full match as Nottingham Forest secured their first league victory of the season with a 2-1 win over Aston Villa.

Liam Delap put Forest ahead befo...