The NFL had a record seven African-American head coaches this last season, 2006 - a record 197 coaches, including seven assistant head coaches.

NPR: Fearsome Foursome Left in Super Bowl Chase

That is up from seven times Ebitda earlier this decade and near the record 9.7 level in 2007, a year where many deals eventually proved disappointments.

WSJ: Private-Equity Firms Forced to Evolve

Even so, Nadal was hesitant to say how this might carry over to Roland Garros, where he has won a record seven times.

NPR: Nadal Beats Almagro To Win 8th Barcelona Open