West Ham are preparing an improved offer for Arne Engels after seeing two bids rejected by Celtic. Martin O’Neill later confirmed there was genuine interest in Engels, but revealed the opening offer fell well short of Celtic’s valuation. CeltsAreHere revealed on Sunday that Celtic are preparing an improved offer worth around £5 million for the German Under-21 international after an initial bid was rejected by SC Paderborn. Paderborn have publicly maintained they are confident of keeping the midfielder, but Celtic are expected to test that resolve with an improved package this week. If Engels’ exit gathers pace, it could provide further momentum to Baur’s proposed arrival.