Manchester clubs enjoy winning start to Europa League campaign

Manchester United's Mexican striker Javier Hernandez celebrates his goal against Dutch side Ajax

Rivals Manchester City and Manchester United prospered in the unfamiliar territory of the Europa League as both recorded away victories in the first leg of their last-32 ties.

English Premier League leaders Manchester City had to rely on an Alvaro Pereira own goal and a late strike from Argentina striker Sergio Aguero to seal a 2-1 win at Portuguese champions Porto.

United, the current English champions, won 2-0 over Ajax in the Netherlands thanks to goals from England winger Ashley Young and Mexico striker Javier Hernandez.

Both sides were making their first appearance in Europe's second tier competition after being knocked out of the European Champions League before the turn of the year.

United, two points behind City in the EPL, are now firmly in the driving seat ahead of next week's second leg at Old Trafford.

Manager Alex Ferguson, who has led his side to two Champions League titles during his 25-year tenure at the club, told reporters: "I'm delighted with the scoreline.