Barca are chasing a summer deal for the Argentina international, who many see as a long-term replacement for 33 year-old Suarez.
However, the Uruguayan is fully on board with Barca's push for Lautaro.
He told Mundo Deportivo: "Lautaro is a player who is growing enormously in Italy.
"He is a 9 who has spectacular movements and this shows the great attacker that he is. Players who come to fight for a place and help the team will always be welcome.
"We will always be better and that will strengthen the group."