Original sentence: Carolina's foremost rival is Clemson University.However, Carolina's main SEC rival has been the University of Georgia due to its proximity and the many years of competition before the Gamecocks joined the SEC.On the other hand, Carolina continues to develop rivalries with other members of the SEC's Eastern Division, which many regard as the most competitive in all of college sports.Sharing nicknames with these schools is an untapped source of rivalry and a rarely exploited opportunity to market competitions with each other.South Carolina usually calls itself either simply "Carolina," or "USC" in athletics, causing some confusion with the North Carolina Tar Heels and the Southern California Trojans.USC then competed as an independent until 1983 when it joined the Metro Conference for all sports except football (which the Metro did not sponsor) and men's soccer.When Carolina was a member of the ACC, there was an intense rivalry with the University of North Carolina, particularly in basketball since Frank McGuire had coached UNC but moved to Columbia to coach the Gamecocks
Edited sentence: "  As a result, recent marketing efforts have included calling itself "SC" and trademarking the word "Gamecocks.However, SC's main SEC rival has been the University of Georgia due to its proximity and the many years of competition before the Gamecocks joined the SEC.However, the lack of competitions between these athletic programs have led to the University losing any national recognition for the use of "Carolina" or "USC.On the other hand, SC continues to develop rivalries with other members of the SEC's Eastern Division, which many regard as the most competitive in all of college sports.SC then competed as an independent until 1983 when it joined the Metro Conference for all sports except football (which the Metro did not sponsor) and men's soccer.SC's foremost rival is Clemson University.South Carolina has called itself "Carolina" or "USC," but the trend has been to call itself "SC" or simply "Gamecocks," as the North Carolina Tar Heels and the Southern California Trojans are better known as "Carolina" and "USC" respectively.When SC was a member of the ACC, there was an intense rivalry with the University of North Carolina, particularly in basketball since Frank McGuire had coached UNC but moved to Columbia to coach the Gamecocks