The Lazio forward caused havoc in the Cape Verde defence with his skill and lightning pace in the opening minutes which resulted to the first chance of the match when Sadio Mane played him through but his first time shot just missed the target.
The 2002 World Cup quarter finalist broke the deadlock mid way through the first half as Mane combined with Balde and the latter beat two defenders before finding the far post with a delightful shot just inside the area amidst wild celebrations by the home fans.
The host went close to extending their lead in the closing stages of the half on two occasions but Balde fired over the bar whilst defender Kara Mbodji’s goal bound header was saved by Jose Dias.
With a near full stadium behind the Teranga Lions, Newcastle United’s summer addition Mohamed Diame was denied by the crossbar on 52 minutes.
Sow secured the points ten minutes before time. After receiving back-heeled pass from Balde, and the experienced forward made no mistake firing top the roof of the net.
The win sends Senegal to the summit of Group D following Burkina Faso and South Africa’s 1-1 draw in Ouagadougou also on Saturday.