The 21-man roster is headlined by striker Kei Kamara, who plies his trade with Major League Soccer club Vancouver Whitecaps.
FC Zurich defender Umaru Bangura makes a return to the side after being forced out of last month's clash with Ethiopia by injury.
Keister's side are set to play away to Ghana on October 11 before returning home for the second leg four days later.
Like the other three teams in Group F, the Leone Stars have three points to their name ahead of matchday three's round of games.
Goalkeepers: Solomon Zombo Morris, Alhaji Sesay, Mohammed Nabile Kamara
Defenders: Yeami Dunia, Umaru Bangura, (C) Osman Kakay, David Simbo, Alie Sesay, Kemson Fofanah
Midfielders: Mohamed Medo Kamara, Alfred Sankon, John Kamara, Julius Wobay, George Davies
Forwards: Kei Ansu Kamara, Alhassan Kamara, Mohamed Buya Turay, Kwame Quee, Sheka Fofanah, Christian Moses, Mustapha Bundu