** Shares in Puma PUMG.DE are seen up 12% premarket, with a local trader pointing to a report that Anta Sports is exploring a bid for the German sportswear brand
** Chinese sportswear maker Anta Sports Products 2020.HK is among firms exploring a potential takeover of Puma, Bloomberg News reported
** Puma declined to comment
** "Warming up a story that already emerged in August this year (share price that time also was around current levels)," the local trader says, expecting the shares to rise on Thursday
** Puma is seen at the top of German midcap index .MDAXI
(Reporting by Linda Pasquini and Shivani Tanna)
((Linda.pasquini@thomsonreuters.com))