Arsenal endured a calamitous start to the Premier League season after conceding two penalties and having Laurent Koscielny dismissed in a 3-1 home defeat by Aston Villa on Saturday.

Penalty of problems: Aston Villa’s Christian Benteke (second from left) slots home a penalty past Arsenal’s Polish goalkeeper Wojciech Szczesny (right) to score his team’s second goal during an EPL match at the Emirates Stadium in London on Saturday. Benteke scored off two penalties, while Antonio Luna added a third for Villa. Earlier, Olivier Giroud scored Arsenal’s opener in the sixth minute. Pic/AFP.