Celtic are hot on the trail of French goal machine Elias Filet, who scored 22 goals last season for FC Aarau. The Hoops have reportedly held discussions with the player's representative on Tuesday as they look to strike a contractual agreement before negotiating a deal with Filet's club. But the Parkhead giants aren't the only side keen on the towering 6ft1in frontman - with Belgian outfit Genk already slapping in an offer. French cracks FC Lorient have also been in contact with the Filet's agent and are expected to firm up their interest this week. Celts have yet to officially confirm their new manager but Martin O'Neill is set to be appointed on a one-year deal, with the option of a further 12 months. O'Neill made it clear last season that the Double-winners would require more firepower and physicality in their squad, and Filet ticks those boxes. Filet was a standout in the Challenge League - the Swiss second tier - and is dominant in the air while clinical inside the penalty box. With just one year left on his deal, it seems almost certain that the Swiss Challenge League Player of the Year will move on this summer. Meanwhile out-of-contract title-winners Kelechi Iheanacho and Alex Oxlade-Chamberlain have yet to discover whether they have a future at Parkhead. Celtic did have an option to trigger a 12-month extension in their deals, but could attempt to negotiate their wage packets. Iheanacho became a cult hero after rescuing the Hoops' title dreams with a flurry of late goals, while January arrival Oxlade-Chamberlain also netted two crucial winners on the way to five-in-a-row.