Gay comeback gathers momentum
US Justin Gatlin (L) runs to win the men's 100m ahead of second placed US Tyson Gay (R) and third placed US Michael Rodger during the Diamond League Athletics meeting "Athletissima" on July, 3, 2014 in Lausanne - by Sebastien Bozon
In steady drizzle, Gay beat Trinidad and Tobago's Richard Thompson, who timed 10.16, into second place, with Norway's Jaysuma Saidy-Ndure third in 10.23.
Last week, in the Lausanne Diamond meet, Gay was trumped by fellow-American Justin Gatlin in his first race back. Gatlin won in a blistering 9.80, with Gay trailing in second in 9.93.
Gay, 31, was banned in June 2013 after testing positive for a banned anabolic steroid in two out-of-competition tests.
His ban, which was reduced from two years by the United States Anti-Doping Agency (USADA) due to Gay's cooperation, ended on June 23.
Jamaïca's Hansle Parchment continued his impressive run of form, easily winning the 110m hurdles in 13.33sec, but he was a long way outside of his own season's best, set in the Paris Diamond meet on Saturday, of 12.94, the 10th fastest of all-time.