(CNN) -- Manchester United have returned to the top of the English Premier League after a header from Ji-sung Park gave them a narrow 1-0 win over previous table-toppers Arsenal. The only goal of a largely disappointing match came just before half-time when Park superbly adjusted his body to divert Nani's deflected cross past 20-year-old Arsenal goalkeeper Wojciech Szczesny, who was making his league debut for the London side. Neither team found their top form in a game of mistimed passes and niggly tackling, but United had the best of the chances with England striker Wayne Rooney missing a golden opportunity to stretch the advantage in the 73rd minute.
@highlight
Manchester United return to the top of the English Premier League table
@highlight
A header from Ji-sung Park gives them a 1-0 victory over Arsenal at Old Trafford
@highlight
United remain unbeaten and are now two points ahead of Arsenal in second place
Wojciech Szczesny
But their flowing passing football deserted them and it was United who nearly snatched a second goal late on, when Rooney's clever lob was superbly clawed away by @placeholder.