"may probably play" is correct and can be used in written English.
You can use this phrase when you want to express that something is a likely or probable outcome. For example, "The game may probably play a role in deciding the result".
Inflammation and mitochondrial dysfunction may probably play a role in this pathological process.
In this context, the response of the myocardium to an ischemic insult may probably play an important role in prognosis.
These findings suggest that B19V may probably play a role in the pathogenesis of P. falciparum malaria following a B19V prevalence profile of healthy control < mild malaria < severe malaria.
Depending on each personal genetic background, antidiabetic drugs and other molecules potentially interacting with the IGF-1 system may probably play a role in the next future when facing TBI and other nervous system pathologies.
And warnings that HS2 may not come to Crewe probably play into UKIP's hands because it's the only one of the four main parties which is completely against the scheme.
However, the in-vitro inactivity of these plants on MRSA may not necessarily translate to their in-vivo inactivity but the extracts may probably be playing immuno-modulatory roles in the body system.
Instead, because floral features increasing constancy probably play a role in enhancing reproductive success, they may have increased diversification rates by reducing extinction rates (see above).
Although psychological effects of dealing with a chronic disease may contribute to the high prevalence of depression, disease-specific mechanisms probably play a role.
Ticket prices probably play a part here.
Shane Watson, though, will probably play in Delhi.
