Eranga must have his action tested at an ICC accredited centre within 14 days - Loughborough University in England is his closest option - but can continue bowling until the result of that test is known.
The Chester-le-Street Test was umpired by Aleem Dar and S Ravi, with Andy Pycroft as match referee. This is the first time Eranga's action has been called into question - in his 18th Test. If it is found to be illegal, he will be barred from bowling in international cricket until he remodels his action and has it cleared at an ICC accredited centre.
Losing Eranga could be a big blow to an already depleted Sri Lankan attack on a what is shaping up to be a disastrous tour of England. They had already lost first-choice quicks Dhammika Prasad and Dushmantha Chameera to injury, and are 2-0 down in the three-Test series, suffering heavy defeats. Eranga, however, has not been effective in the series so far, picking up just one wicket in 47 overs across three innings.