Arsenal record signing hailed Lukas Podolski's winner against Anderlecht.
Lukas Podolski smashed a vital winner away to Anderlecht to cap a surprise turnaround.
It had appeared the Gunners were heading for defeat after Andy Najar headed the Belgian in front with 15 minutes to go.
Kieran Gibbs struck an equaliser in the 88th minute, before substitute Podolski fired home from close range after the ball broke loose in the six yard box in injury time.
His German international teammate Mesut Ozil, watching on from home, took to Twitter to celebrate the strike.
The goal gives Arsenal a major lift, and sees them take a key step towards qualification to the next phase, even keeping them in touch with group leaders Borussia Dortmund.
Record signing Ozil is out injured, and not expected back for another 10 weeks. With a big point to prove, he will be delighted that his chances of playing in the knockout stages have taken a 'vital' boost.