Career
Flora
Being a product of Flora Football Academy, Frolov spent several years playing for various Flora reserve and feeder teams including Lelle, Flora II, Tervis, Warrior and Tulevik, before becoming a first team regular with Flora. He went on to score another 10 goals in the following 2012 Meistriliiga season, becoming an integral part of the first team as Flora finished third. On 19 October 2012, Frolov was appointed as Flora captain for the remainder of season.
Frolov made his international debut for Estonia on 8 November 2012 against Oman, coming off the bench during the 74th minute as a substitute for Ats Purje.
On the 88th minute he delivered a corner kick which took a deflection off Taavi Rähn before being headed into the Netto by Flora teammate Gert Kams. Club
Flora
Meistriliiga: 2010, 2011, 2015
Estonian Cup: 2010-2011, 2012-2013
Estonian Supercup: 2011, 2012, 2014.