Inter Miami and Argentina fans are worried after Lionel Messi was substituted in the 73rd minute of his club's final MLS match before the World Cup break.
Messi, 38, appeared uncomfortable after a free kick and was seen touching the back of his left leg before speaking with the Miami bench.
He was replaced by Mateo Silvetti and immediately headed down the tunnel, sparking concern among fans.
The timing could hardly be worse for Argentina, who are preparing for the upcoming World Cup and have friendlies against Honduras and Iceland before opening the tournament against Algeria.
Messi is expected to lead Argentina in what many believe could be his final World Cup appearance after captaining La Albiceleste to the 2022 title.
