Bogdanovic, 30 is to be released by Barnsley when his contract expires this summer, leaving the Maltese international without a club and demand any transfer fees.
The forward signed for the Tykes in January 2009, making the move from Locomotive Sofia - he scored on his debut in a 2-1 home defeat to the hands of Ipswich Town and has since made 36 (+13) appearances and scored 19 goals for the Oakwell club.
It is common knowledge that the Maltese national has held talks with Sheffield United and will decide his future soon - however it has emerged that newly promoted Leeds United are also interested in making an offer.