MARKETPLACE ROUND-UP

          Under its new Sega Sports Brand, Sega will branch out
     to clothing, sports equipment and watches, "aiming to hold
     onto consumers as they age beyond the core game-playing
     demo."  Sega also plans basketballs, snowboards and
     rollerblades, along with a line of jackets, fleeces,
     sweatshirts and hats (ADWEEK, 4/13 issue)....Derek Jeter
     appeared at a N.Y.-area Macy's yesterday to promote his new
     Fila line, "Can You Jeter?"  The store offered a special
     Fila gift signed by Jeter with all Fila men's sportswear
     purchases of $75 or more (N.Y. TIMES, 4/12).