Olivier Ground scored for the forth straight Premier League for Arsenal's 3-0 win over West Ham.
A fifth successive league victory cemented third place for Arsenal in the standings and put the team in good heart for its Champions League last-16 match at Monaco on Wednesday, when it needs to overturn a 3-1 deficit from the first leg.
The recalled Giroud fired a shot in off the post in first-half injury time for his 13th goal of the season in all competitions, capping sustained pressure in the opening 45 minutes.
Aaron Ramsey steered home Giroud's pass for Arsenal's second in the 81st and Mathieu Flamini added another goal in the 84th with one of his first touches after entering as a substitute.
Other Results:
Crystal Palace 3-1 QPR
Arsenal 3-0 West Ham
Leicester 0-0 Hull
Sunderland 0-4 Aston Villa
West Brom 1-0 Stoke
Source: Reuters