If the coming LaLiga campaign can match the previous few months for drama, an epic is in store.

The 2021-22 season gets under way this weekend with Spanish football still reeling from Lionel Messi's remarkable Barcelona departure.

The move to Paris Saint-Germain leaves one of LaLiga's grandest clubs without its talisman, while rivals Real Madrid have also seen their captain depart for the French capital on a free transfer.

Where does that leave defending champions Atletico Madrid and the rest heading into the opening weekend? Stats Perform takes a look.

CHAOS IN CATALONIA

Barca still have plenty of world-class players and will this season be able to count on Pedri, Frenkie de Jong, Antoine Griezmann and, they hope, Memphis Depay.

But the shocking nature of Messi's exit is going to be tough to move on from, even if the club's dire financial situation does not prevent Depay and the Blaugrana's other new signings from being registered.

Messi either attempted (196) or created (77) 46.8 per cent of Barca's 583 shots in 2020-21 – and he missed three games – so Ronald Koeman's side are going to have to completely change the way they play.

He was already missed when out through injury – Barca won 73.7 per cent of the 520 league games in which Messi featured for the club but just 56.7 per cent of the 120 he did not – and that issue is not going away now.

MADRID COPE WITH CHANGE

Money is tight at Madrid too, but Los Blancos have faced that reality, cutting back spending and agreeing the departures of high earners like Sergio Ramos and Raphael Varane.

Despite Zinedine Zidane's exit, they also look in better shape on the pitch on the eve of the new campaign.

Madrid ended last season unbeaten in 18, the best ongoing run in the competition, with only frustrating late-season draws with Getafe, Real Betis and Sevilla – all in the space of five games – leaving them two points shy of Atletico.

They have gone for a familiar face with a proven track record to replace Zidane, Carlo Ancelotti returning after winning 75 per cent of the league games in his first Madrid stint – trailing only Jose Mourinho (76 per cent win rate) among Madrid coaches to oversee 50 matches or more.

ATLETI AT THE TOP

It is a strange phenomenon for Atleti to be both top of the league and not the target of constant transfer enquiries.

Their key men are unlikely to be poached while Barca and Madrid are so short of cash, with the Blaugrana instead reportedly pursuing a deal going the other way, with Griezmann returning to the Wanda Metropolitano.

The development with Messi appears to have put that idea to bed, and Atleti instead spent the week before the season agreeing new contracts for defensive stars.

Those clubs on the outside of the title race looking in are enjoying unfamiliar comforts too, with Europa League winners Villarreal keeping their best players – including Gerard Moreno, whose 23 goals only trailed Messi – and Real Sociedad bringing back the same team that finished fifth.

Unless Ancelotti quickly restores an ageing Madrid side to past glories, this season could be wide open at the summit.