Context: In July 2021, after 25 seasons as members of the Big 12, Texas and rival Oklahoma accepted invitations to join the Southeastern Conference (SEC) no later than the 2025 season. In February 2023, the Big 12 announced that the two schools had negotiated a combined $100 million early termination fee in order to leave for the SEC a year before the schools' media rights deal with the Big 12 was set to expire. The Longhorns football team will continue competing in the Big 12 through the 2023 season before moving to the SEC in 2024. Input: What team other then Texan Longhorn accept an invitation to the SEC in July 2021? Output: Based on the context provided, the only other team that accepted an invitation to join the SEC, other than the Texas Longhorns, was the Oklahoma Sooners. Both Texas and Oklahoma were invited to join the SEC in July 2021, and they accepted the invitation with the intention of joining the conference no later than the 2025 season.