 Complete the following phrase:  The record for the longest unbeaten run stands at 25 games and is held by Manchester United. The streak began with a 10 away win against Sporting CP in their opening group stage game in 200708 and reached a 25th game following their 31 away win against Arsenal in the second leg of the 200809 semi-finals. The streak then ended with a 02 loss to Barcelona in the 