Bayern Munich chiefs are growing concerned over the form and fitness of Sadio Mane, who has not scored for nearly five months.
Mane, 30, joined Bayern from Liverpool last summer in a £35million deal. It was seen as coup at the time, as the forward played a vital role in Liverpool's revival under Jurgen Klopp. He also finished second behind Karim Benzema in last year's Ballon d'Or vote.
Mane enjoyed a solid start to the season in Germany - scoring 11 goals in all competitions - but suffered a leg injury the weekend before the World Cup in Qatar got underway. He returned to fitness in February but has provided just one assist in the Bundesliga.
