Manchester United have come from behind against Arsenal to take a 1-1 draw into the break of their FA Cup sixth-round tie at Old Trafford this evening.

The visitors started brightly and Alexis Sanchez caused a moment of early panic inside the United box with a strike that was blocked by Chris Smalling.

Louis van Gaal's side gradually began to take control of the match, with Arsenal sitting deep and allowing their opponents time on the ball.

For all of United's possession, it took them 20 minutes to register their first shot on goal, but after being found in space inside the box, Ashley Young blazed his attempt high over the bar.

However, in the 25th minute Arsenal took the lead, as Alex Oxlade-Chamberlain danced past couple of challenges on the edge of the box, before sliding in Nacho Monreal to place a composed finish past David de Gea.

United responded well to that setback and within four minutes they had levelled the scores when Angel Di Maria's deep cross was headed in by Wayne Rooney.

The game was being played at a frenetic pace and the Gunners felt that they should have had a penalty when Danny Welbeck appeared to be dragged down inside the box by Marcos Rojo, but the referee waved away their appeals.

Welbeck was involved again moments later, as he rose highest to meet an Oxlade-Chamberlain cross, before seeing his header saved by De Gea.

As the game approached half time, United almost snatched the lead, but Wojciech Szczesny was alert to keep out Di Maria's near-post effort.

Santi Cazorla then saw a free kick saved, while Marouane Fellaini was also denied, as the two teams headed into the break on level terms.