Without Messi and Suárez, Barça would see a 70% drop in goals
Messi and Suárez created 74 of the 110 goals which Barcelona scored in 2019-20. Since they started playing together, Messi has scored 280 goals, Suárez, 198.
Those stats will paint a worrying picture for the team if both players end up leaving. If Barça are serious about contesting the league title this season, they would have to bring in two or three forwards who between them, guarantee 50 to 60 goals. That will be anything but easy...
Lautaro Martínez is the big candidate to strengthen Barça's attack ahead of the new season. He hit 21 goals in 49 official games last season. Barça would also need at least one other player with similar goal scoring attributes to the Argentinean to fill the void left by the departure of Suárez and Messi. And that would just be in terms of numbers - making up for everything else the pair give the team would be practically impossible.