The United States and Mexico are tentatively scheduled to play a soccer friendly at the Alamodome in San Antonio on Wednesday. I say “tentatively” because El Tri officials are not at all happy about the temporary grass pitch that has been laid out over the stadium’s concrete floor.

According to a report in Medio Tempo, Mexico was unable to train on the field on Tuesday because of the poor conditions, instead practicing at a local college. And, according to a translation by Pro Soccer Talk’s Kyle Bonn, “the general manager of the Mexican Soccer Federation Hector Gonzalez Inarritu has floated the idea of refusing to play should Alamodome conditions not improve.”

Miguel Gurwitz of Televisa Deportes called the field “uneven” and “full of patches” on Twitter.

Game organizers are expecting a full contingent of 65,000 fans for the match, so a cancellation will likely cause much grumbling. The Alamodome has hosted a number of soccer matches in the past, including a friendly between Mexico and South Korea that drew 54,313 in January 2014.