Manchester United midfielder Park Ji-sung has raised further question marks about Arsenal's ability to sustain a title challenge by claiming it will be March before a proper assessment of the Gunners can be made.
Park's close friend Patrice Evra has ruffled a few feathers ahead of Monday night's meeting of the top two at Old Trafford by questioning whether there is any substance to Arsenal's unquestioned flair.
"Arsenal have shown they are a good side," said the South Korea skipper.
"They have a lot of young players but they have played very well this season and they do have more experience than last season.
"But we have a lot of it and that is one of the most important things in the title race.
"Arsenal are doing well now but maybe in March, when the pressure comes on and the games begin at the end of the season, you will end up with different results."