The AP reports: O.J. Mayo, the third overall pick by the Memphis Grizzlies in last month’s draft, made the most spectacular shot of his career Monday night at the NBA Summer League. Mayo converted a desperation three-quarters court shot from 69 feet to beat the first-quarter buzzer against San Antonio. Mayo, who shot it with both hands from straight away, rattled it through the rim. “I thought it wasn’t going to make it to the rim,” Mayo said. “I was surprised. After practices recently, we have been practicing half-court shots. I made a few there, and now I made one in a game.”