Shock Arsenal flaw exposed ahead of PSG clash as huge early season praise forgotten

It was hardly the ideal preparation for as they looked to get into top form heading into their semi-final against next week.

named a strong lineup for their encounter against . But he was ultimately left frustrated after the Gunners were held to another draw - their 13th of the season - which sees them trail leaders by 12 points having played a game more.

took an early lead through powerful header, but were pegged back before the break as scored a volley after being found from a corner. While got the hosts back in the lead before half-time, a second-half mistake from gifted the ball to Jean-Philippe Mateta, who duly chipped from long range to help secure a point for Oliver Glasner's side.

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Following the game, former Liverpool defender revealed a shocking stat for the Gunners, who were praised at the beginning of the season for their effectiveness from set-plays. While set-piece coach Nicolas Jover has received acclaim with the team being a consistent threat from corners and free-kicks, Carragher revealed that the Gunners have now conceded the highest proportion of set-piece goals in the top half of the Premier League.

"Arsenal have conceded six percent of their goals from corners. That, would you believe, is the most in the top half of the Premier League," Carragher said on Sky Sports.

"Only Manchester United are actually worse than Arsenal set-piece wise. When we make a big deal about the set-piece coach [Jover], he's out of this world going forward but they've got a big problem defensively.

"Should we cut his wages in half?" Carragher joked. "It's been one of the stories of the season and rightly so, it's unbelievable.

"You think Arsenal are going to score a goal from every set-piece...he's had a huge impact. But it's funny that on the flip-side of that, they're having problems themselves."

The Gunners will be hopeful of tightening up at the back once again with the huge clash against PSG up next. But while they were not at their best against Palace, they can take heart from the fact that they've put Premier League draws behind them already this year to stun their opponents in the Champions League.