The Falcons garnered six points from two games to qualify after losing their opening match to Banyana Banyana of South Africa.
Nigeria rises to the second spot in Group C with three points behind South Africa.
Oshoala will return to Spain on Thursday to continue treatment with her club.
Botswana, now Group C table leaders, face Nigeria in their next game on Thursday at 8:00 p.m., while Burundi will be up against South Africa at 5:00 p.m.
The Falcons will take on Botswana on July 7 and Burundi on July 10 in group phase matches.
Nigeria, who had earlier defeated Brazil and Germany, would face two-time winner Uganda at the IPRC cricket oval on Sunday.
Nigeria scored 79 runs, for the loss of five in 13.4 overs, winning by five wickets.
The Ministry of Health said 635 new cases were reported from May 22 to May 25 with 2 deaths. As of May 31, Botswana has reported 30,126 cases.
Fenty, which first launched as a cosmetic brand, has become popular for its broad inclusivity across all skin tones and genders.
The tourney kicks off in Rabat on July 2 with the final match to be played on July 23.
