By Madeline Coleman The letter sent to WNBA and NBA commissioners Cathy Engelbert and Adam Silver requested a meeting to discuss his punishment. The WNBA Players Association sent a letter to WNBA and NBA commissioners Cathy Engelbert and Adam Silver on Wednesday, requesting a meeting to discuss Robert Sarver’s punishment. The NBA suspended the Suns and Mercury owner for one year and dealt him a $10 million fine following an investigation into workplace misconduct. When announcing the punishment, the league said the investigation found Sarver used the N-word at least five times “when recounting…