Whichever team has the best goal difference in the two matches will be placed highest if the points are equal.
If head-to-head goal difference is the same, goal difference over the entire season is used, and then goals scored.
The second leg will be played three days later, at Camp Nou on August 14.
That's just one day before the European Super Cup, which could be between Real Madrid and Atletico Madrid if they each win the Champions League and Europa League respectively this month.
The team with the most points at the end of the season is the champion.
A table below shows the complete breakdown with winners and runners-up every year dating back to the league's inception in 1929.
Barça and Sevilla now know the dates for the Super Cup.
Keeping in mind that the La Liga season will start on the August 18/19, the first leg is set to be played in Seville on August 11.
It remains one of the congregations of the Roman Curia and concerns itself primarily with questions of Roman Catholic dogma and doctrine.
‘My love’, ‘my darling’ and ‘my sky’ are some of the most regularly used when Spaniards want to refer to their other halves.