Manager Johnny McKinstry has named his squad for the games against South Sudan later this month, with Jambos striker Ikpeazu in line to make his debut.
Ikpeazu is English-born, but qualifies to represent Uganda through his mother. He could also have played for Nigeria because of his father.
Well defender Mugabi has 10 caps for his country, having debuted in 2018 against São Tomé.
Uganda are currently top of Group B in qualifying, and hope to seal their place at the finals in Cameroon next year.
Ikpeazu’s first call-up comes amid the 25-year-old having fallen somewhat out of favour at Tynecastle in recent times.
The star has not been Daniel Stendel’s top choice since taking over in December and is yet to find the net during his reign.
A chance for Ikpeazu
It remains to be seen how much Ikpeazu features, but South Sudan are bottom of Group B having lost their first two matches.
Hopefully for Hearts fans, their man will go away and get some action for his country and maybe refamiliarise himself with scoring goals.
The club are currently bottom of the Premiership and it is paramount that all of Stendel’s players find form at a critical stage of the season.
Competition needs to be strong as the club attempt to navigate away from the foot of the table.