Stephen Jackson was at Minneapolis-St. Paul International Airport late last week, minutes from begrudgingly boarding a connecting flight to San Francisco, when his cell phone buzzed in his pocket. The call was coming from a number with a 210 area code he didn't immediately recognize, so Jackson let it go to voicemail. Then came the text message. It was from Spurs general manager R.C. Buford and contained six words that caused Jackson to step out of line, right there at the Delta gate: "Pop wants to talk to you."