Positives & negatives from Arsenal's 7-1 thrashing of PSV in the Champions League

Positive #2: Ethan Nwaneri loving the Champions League life

If not being overawed by the occasion is the sign of a top player, Arsenal have a great in the making in the form of Nwaneri. He simply can't get enough of Europe's premier club competition.

Nwaneri's latest contribution in the Champions League was this emphatically taken goal to double the away side's lead on 21 minutes. The move, started by a craftily angled pass from Trossard, sadly not shown here, also involved Nwaneri's fellow academy darling Lewis-Skelly.

The left-back in name only trickled a low cross toward Nwaneri, who put his foot far enough through the ball to hit the border with Germany. A crashing sound as the ball hit the net was only missing a cry of 'av it!

In truth, Nwaneri didn't need to say a word. His performance spoke volumes. Not just the goal, but the direct running, natural acceleration and impish trickery PSV failed to stop.

It's easy to believe not many teams left in the competition are going to have answers for Nwaneri's box of rapid-fire tricks. He earned top marks, but another youngster barely approached a passing grade.

Negative #1: Reckless Myles Lewis-Skelly

He assisted Nwaneri's goal, but this performance wasn't one for the Lewis-Skelly scrapbook. Not unless it formed an entry to a Big Book of Escapology.

Lewis-Skelly went all Houdini to somehow escape a second yellow card after first being booked for pulling back PSV's ageing workhorse up top, Luuk de Jong. The 34-year-old didn't need any speed to get beyond Lewis-Skelly. He simply read the flight of the ball better and exploited the youngster's shaky sense for defensive positioning.

That last point is key. Lewis-Skelly isn't a full-back. He's a supremely talented footballer who's been shoehorned into an unnatural position.

It's why the 18-year-old is finding himself on the wrong end of an increasing number of disciplinary decisions. Yes, one of those was tainted by yet another quirk of the PGMOL, but Lewis-Skelly can have no complaints about the red card he received during the 1-0 home defeat to West Ham.

Anyone connected to Arsenal will have some gall complaining after Lewis-Skelly inexplicably survived what should've been a second booking in the Netherlands. This time he tripped raiding right-back Richard Ledezma and was only spared another sending off by the grace of a non-Premier League referee.

Fortunately, Arteta took the warning and stepped in himself to hook Lewis-Skelly for Calafiori after just 34 minutes. That was a necessary intervention, but the manager needs to sit one of his brightest young things down and have a serious chat about his more reckless habits.

Perhaps that conversation can be extended to include others after Arsenal creaked a little too often at the back.

Continued on the next slide...