James recently called out Manti Te'o, saying that he's faster than the former Notre Dame linebacker.
In the Miami Heat locker room Tuesday, James told the South Florida Sun-Sentinel that he ran a 40-yard-dash in 4.6 seconds without training for the sprint last summer.
"It's better than Manti Te'o, I'll tell you that," James said.
Te'o clocked a time of 4.82 in the 40-yard-dash at the NFL scouting combine on Monday, 0.2 seconds slower than James' said time.
Now that may be more heartbreaking than a fake girlfriend.