Australian Davis Cup teammates Matt Ebden and John Millman have both progressed to the second round of the ATP Masters 1000 event in Miami.

Ebden opened his campaign with an impressive 6-3 6-7 (7-2) 7-5 win over veteran Frenchman Gilles Simon, while Millman backed up his qualifying run with a 2-6 6-4 6-4 victory over German Peter Gojowczyk.

Ebden next plays rising Korean Hyeon Chung, with Millman up against Japanese star Kei Nishikori.