MEXICO CITY, Aug 11 (Reuters) - Mexican Economy Minister Tatiana Clouthier said on Wednesday that the country’s economy could grow less than 6.3% this year due to a new wave of coronavirus infections, but is still expected to expand by at least 5.5%. The finance ministry has estimated growth of 6.5% in 2021. (Reporting by Sharay Angulo; Editing by David Alire Garcia) Our Standards: The Thomson Reuters Trust Principles.