I know we've had this before but someone settle a debate please. People have agreed you'd know.
Its the last minute. All players are in one half for a corner.
The ball is cleared. The number 9 moves into the opposing half and the opposing number 5 goes with him. The 5 - defending - stays goal side as the 9 receives the ball.
They are the only two players in that half.
Offside?