Lifting football's labor lockout without a new contract in place would allow better-off teams to sign the best players, tipping the NFL's competitive balance and damaging the league, attorneys for the owners argued in court papers Monday. The 74-page filing to the 8th U.S. Circuit Court of Appeals in St. Louis laid out the league's position in advance of a June 3 hearing on its appeal of a key decision by U.S. District Judge Susan Richard Nelson. Nelson issued an injunction that lifted the lockout on April 25. But the 8th Circuit issued a temporary hold of that order four days later -- meaning that players cannot work out, or sign contracts, with any of the 32 clubs. Read more: http://sports.espn.go.com/nfl/news/story?id=6516425