Arsene Wenger is "convinced" Barcelona will sign another forward despite expecting improvement from Antoine Griezmann.
Griezmann has struggled to hit top form in his first season at Barca, scoring 14 goals in 37 games since his €120 million ($135m) arrival from Atletico Madrid.
Barca are heavily linked with a move for Inter star Lautaro Martinez, who is considered a long-term replacement for Luis Suarez.
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Former Arsenal manager Wenger believes Griezmann will improve, but feels Barcelona will add another forward this close season.
"Barcelona has always bought the greatest players.