Negotiations are underway regarding Castello Lukeba, with Arsenal keen to finalise a deal with Leipzig as they look to strengthen their squad for the run-in. The defender has emerged as a top transfer target in recent weeks, and the player's representatives are also believed to be involved in early discussions on personal terms. Whether a deal can be struck remains to be seen, but there is increasing optimism that the transfer could go through in the coming days. Bayern Munich, Aston Villa and Man Utd are reportedly waiting in the wings. Finalising a fee and payment terms remains central to closing the transfer. Arsenal's back line has been a real strength this season, conceding just 0.73 goals per game (22 in 30). Castello Lukeba would be expected to slot into that unit and hold his own in an already solid setup. Alongside this, Leipzig are said to be exploring Rocco Reitz with Arsenal likewise connected to Anis Hadj Moussa Hadj Moussa, Pharrel Nnamdi Collins and Johan Manzambi. Follow us on Twitter @PlayerSwitchCom and get the latest Arsenal transfer news and rumours direct to your feed.