Summary:
Senegal's hopes of qualifying for the Africa Cup of Nations for the first time in 20 years have been dealt a blow after striker Diafra Sakho pulled out with a back injury.

Full article:
West Ham face an anxious wait to discover if striker Diafra Sakho will be fit for Saturday's Premier League clash against Everton. The striker was forced out of Senegal's Africa Cup of Nations 2015 qualifier against Botswana on Wednesday because of a back injury. Diafra Sakho was forced out of Senegal's Africa Cup of Nations 2015 qualifier against Botswana . Sakho came on a substitute in 1-0 victory against Egypt which sealed place at 2015 Africa Cup of Nations . Sakho and team-mates celebrate Senegal booking place at finals of 2015 Africa Cup of Nations . The 24-year-old had only recently returned to action after suffering a shoulder injury in the 2-1 victory against Manchester City . He tweeted: 'Unfortunately my back pain makes me unfit for the game. I'm as devastated as you are, but I'll be back.' Sakho has been in sensational form, scoring six goals in as many starts for West Ham . Hammer striker Sakho was named Barclays player of the month for October . Sakho had been recalled to the Senegal squad despite his outburst at coach Alain Giresse. He was furious at being overlooked despite scoring six goals in as many starts for West Ham. Sakho came on as a substitute in Saturday's 1-0 victory against Egypt which sealed their place in the finals, starting on January 17.