The pair are still troubled by hip injuries, but striker Emile Sinclair is expected to be available.
Simpson this week signed left-sided defender Tony Diagne on a contract until the end of the season.
The 20-year-old Frenchman, who can play at centre-half and left-back, came through the youth ranks at Nottingham Forest.
Macc are hoping to receive international clearance in time for him to feature, while striker Simon Yeo has returned to Moss Rose on non-contract terms until the end of the season.
Yeo played for the Silkmen back in 2008/09 before further spells in non-league with Droylsden, Harrogate Town and most recently New Mills.
Source: PA
Source: PA