Mikel Arteta may have 'loved' Arsenal's narrow win at Crystal Palace but believes a stopwatch may be needed to iron out inconsistencies in time-wasting after Takehiro Tomiyasu fell foul of the rules.
The Gunners won 1-0 in south London as Martin Odegaard's second-half penalty proved the difference.
Japan defender Tomiyasu was sent off at Selhurst Park, picking up a soft yellow card for a foul on Jordan Ayew just seven minutes after being cautioned for perceived time-wasting at a throw-in.
The new remit for officiating this season has called, among other changes, for a clamp down on time-wasting but Arteta believes the timing did not add up on Tomiyasu's booking.