Celtic have entered the contest to sign Noble Mendy this week. Media reports confirm the club are one of at least three teams pursuing the Spanish full-back. Additional suitors from Germany’s top flight also join the battle. Mendy nearly joined their Glasgow rivals last season but did not pass a medical. The transfer collapsed before Celtic made a bid to sign him one year later. The player remains with his Spanish side, holding a market value estimated at £6.4 million. No check-up has occurred for this new deal yet. The two clubs must settle a fee before the move can proceed. The situation develop slowly as European deals heats up.