South Africa have won the toss and will bat first in the first T20 match against visitor Bangladesh in Bloemfontein on Thursday.Bangladesh XI: Kayes, Soumya, Sabbir, Shakib (captain), Mushfiqur (wk), Mahmudullah, Mehedi, Rubel, Shafiul, Saifuddin and Taskin.South Africa XI: De Kock (wk), Amla, De Villiers, Duminy (captain), Miller, Behardien, Phehlukwayo, Frylinck, Phangiso, Paterson and Hendricks.