Lionel Messi is in hot water after a former rival slammed his contentious celebration for showing a "lack of professionalism and manners." Messi upset Mexican ex-international Adolfo Bautista during a pre-season friendly between Inter Miami and Club America.

The 37-year-old Argentine was at the centre of a penalty shoot-out victory on Sunday as he helped guide his MLS team to triumph following an early assist. But it wasn't just his on-field proficiency that captured attention.

Celebrating with former Barcelona colleagues Luis Suarez, Sergio Busquets, and Jordi Alba, Messi made a controversial gesture to the spectators at Allegiant Stadium.

Extending his arms and pointing to his jersey, he then flaunted a three-fingered salute, apparently referencing Argentina's three World Cup victories, reports This irked Bautista - who once contended with Messi in the 2010 World Cup in South Africa, where Mexico were bested 3-1 - pushing him to voice his frustrations online.

In a sharp critique on social media, the former striker disclosed his disappointment with Messi's antics, declaring: "I admired you as a player. But messing with my country speaks of your lack of professionalism and manners."

In addition to his views on the Inter Miami sensation, he shared a nostalgic snap of himself in action with the Argentine legend during their 2010 clash. The photo shows him charging with the ball while Messi is left grounded in the backdrop.

Messi's goal - his first of 2025 - also marked his first under the stewardship of new Miami coach Javier Mascherano. The pair shared the pitch for 13 years, representing Argentina, and enjoyed eight unforgettable years together at Barcelona, clinching the Champions League in 2015.