Eto'o was speaking about Barca's pursuit of Inter Milan striker Lautaro Martinez.
In an interview with 'Tot Costa' de Catalunya Ràdio, Eto'o pointed out that Suarez is "making history" at Barça: "I love Suarez, he's one of the best in the world in his position.
"Barça always have to strengthen, but they don't need to stand down a general like Luis Suarez. In his position, he's a general and you cannot compare him with anyone.
"Lautaro is doing really well with Inter and has a future, but people have a tendency to forget recent history and Luis is writing history, not just at Barça, but in football. That has to be recognized.
"That doesn't impede bringing in another player to add competition to the group, knowing how many games Barça have, but a little respect for those that have written history."