he invited david caplan to one of the workouts. as you'll see this is a case study in the agnat my of a work use. >> reporter: not a time many professional athletes are up and about. brian is ready to get to work. he gets together with trainer micates in north brook. is occasionally joined by fellow pitchers jeff and tom. >> the three of us working out. it's fun to push each other like that. it's a friendly competition. >> to build team spirit. >> yes. >> reporter: dempsters teammates are workingout. it's up to me to keep up. >> stand up tall. push your butt down. >> reporter: the majority of it is your legs for a pitcher that'sth most important th isnng t ju flun. exp mot en,oungts e esly at risk r th1 fls. 's ogether nd fhe f ettir fline, u'llct yf an pre sprethe flu vacare an tht eive toent u. f t tts agov. together, we can all fight the flu. >>> all right now get this. it's a chance of a lifetime. a chance to wear your favorite baseball team uniform with mayor name on the back of it and you get to play baseball with former majo

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