Unbeaten French prospect Salahdine Parnasse will square off against Roman Szymanski for the interim featherweight crown in the KSW 48 headliner.The Polish promotion announced the booking on Tuesday. Mateusz Gamrot is currently the reigning KSW champion at lightweight and featherweight, but his next title defense will come at 155 pounds, thus creating the need for an interim belt."With Mateusz Gamrot holding the featherweight and lightweight titles we anticipated that this situation might happen. Gamrot's next title defense will be at lightweight and we did not want to hold up the featherweight division," said KSW Director of Sport Wojslaw Rysiewski. "Both Parnasse and Szymanski have earned their spots in challenging for the title so we are very excited to see these two face each other. They are two of Europe's top young talent at featherweight."KSW 48 takes place in Lublin, Poland on April 27 and will see Lukasz Jurkowski meet Stjepen Bekavac in the co-main event.The 21-year-old Parnasse is unbeaten in his first 13 professional bouts, with a draw in 2016 thus far the only blemish on his ledger. The Atch Academy product is 3-0 in KSW, including a unanimous decision triumph against Marcin Wrzosek in his most recent outing at KSW 46 on Dec. 1.Szymanski, 25, has won three of his last four outings under the KSW banner. Most recently, the Polish fighter outpointed Daniel Torres at KSW 46.