According to an ESPN press release:
Keith Olbermann, whose daily late-night program debuts Monday, Aug. 26, on ESPN2, will make his first SportsCenter appearance in 16 years tonight during the 11:00 p.m. ET show. Olbermann will provide an essay concerning Alex Rodriguez’ return to Yankee Stadium tomorrow night. “Olbermann” will air Monday-Friday at 11 p.m. live from New York studios.