Image courtesy of: ESPNcricinfo
Shillingford took 11 wickets in the two-Test series
West Indies all-rounder Marlon Samuels and off-spinner Shane Shillingford have both been reported for suspicious bowling actions by the International Cricket Council (ICC) and will have to undergo independent tests within the next 21 days.
Following these tests, Samuels and Shillingford will have 14 days to hand in their results.
Despite being tested for suspicious bowling actions, the pair can still continue bowling for the time being.
Their actions were reported by umpires Nigel Llong, Richard Kettleborough, Vineet Kulkarni and match referee Andy Pycroft at the end of the second day of the second Test against India in Mumbai.
The umpires and match referee were most concerned about their quicker deliveries and doosras.
Both Samuels and Shillingford have been banned in the past for suspicious bowling actions.
Samuels was reported in 2008 and did not bowl for the next three years, while Shillingford was barred from bowling in 2010, but resumed in 2011 after undergoing remedial work.