According to Twitter, Zlatan Ibrahimovic's volley generated 32,000 tweets, but wasn't enough to help Manchester United complete a comeback as they lost 2-1 to City at Old Trafford.
Manchester City captain Vincent Kompany has vowed to support the victims of Monday's terrorist attack and praised the city's resilience on a video released by the club's Twitter account.
The 53-year-old announced on Monday that he will be ending his four-year spell as manager of Athletic Bilbao amid constant links with the Barcelona job.
Arsenal missed out on next season's Champions League following a final-day tussle with Liverpool for fourth place. But the Chile forward looked raring to go ahead of the FA Cup final.