Well, Europe's big leagues gave us another big batch of talking points lot to enjoy, dissect and digest this weekend! From Chelsea's and Liverpool's chastening defeats -- though for different reasons -- to Napoli's latest big win and Barcelona's great escape against Valencia, and from Real Madrid's shocking 1-1 draw with lowly Girona to mighty Bayern Munich's 6-2 win that didn't put them top of the Bundesliga, the weekend had it all.

Elsewhere, there was lots for Man United, Arsenal, Juventus and PSG fans to process.


Chelsea reality check as Potter's side thrashed at Brighton

Let's remind ourselves that Graham Potter has been in charge for less than two months, that he has his own approach to the game, and while he's closer to his predecessor, Thomas Tuchel, than, say, Sean Dyche or Diego Simeone in terms of his football philosophy, he's not particularly close and it was never going to be a seamless transition. That he walked into Chelsea in September without the benefits of a preseason, without a technical director, without a recruitment guy, without a number of scouts -- all positions the club is working to fill -- and with a club engulfed in the sort of transition that happens when there's an ownership change after nearly two decades. That the previous summer's recruitment with an "interim sporting director" who is not a sporting director and comes from a wholly different sport.

Remind yourself of all that, and maybe Saturday's 4-1 trouncing away to Brighton isn't that surprising. Potter blamed unforced errors and sure, that played a part, but it doesn't fully explain Chelsea's wretched performance.

The fact of the matter is that since Potter took over, Chelsea have ranked below the league average in categories such as shots, expected goals and expected goals conceded. In other words, they haven't been particularly good. And while there has been an ever-so-slight improvement in results (both Tuchel and Potter were in charge for six league games, with Tuchel gaining 10 points and Potter gaining 11), that's also offset by the fact that, other than Manchester United (which finished in a draw), Chelsea haven't faced any top sides.

So where are we? We have the textbook definition of a "team in transition," hence why Chelsea seem to change formation and personnel almost every week.

Potter has explained that the concepts remain the same, but they are testing different set-ups. Fine. It's what you would normally do in preseason and at the training ground, but he has the luxury of neither: He was appointed in September and Chelsea's demented fixture list means he gets very few training sessions to actually work with the players, something he had at his previous gig since Brighton didn't play in Europe.

Potter experimented further against Roberto De Zerbi's press on Saturday, deploying Raheem Sterling and Christian Pulisic as wing-backs, with a "box" midfield of Ruben Loftus-Cheek and Mateo Kovacic behind Mason Mount and Conor Gallagher. We'd seen the previous two as wing-backs against Salzburg (with mixed results), we hadn't seen this version of the 'box" (not with this personnel anyway). It didn't work in a first half that saw them go 3-0 down, though Potter said it worked better after the break, which may explain why he didn't make any changes until after the hour mark.