The tactician's comment comes after the sprinter came second in the Paris Diamond League.
Former AFC Leopards assistant coach Francis Xavier has advised Ferdinard Omanyala to work on his take-off.
The Kenyan sprint sensation came second behind world champion Noah Lyles by a hundredth of a second at the Paris Diamond League on Friday night after running for 9.98 seconds, while Lyles' time was 9.97 in the 100 meters for men.
10:32 - 10.06.2023
ATHLETICS Omanyala appreciates fans for support after 'mixed' Diamond League fortunes as focus shifts to World Champs
Africa's fastest man recorded back-to-back second place finishes in Florence and Paris and will now take a seven-week break before returning to action
After coming in second, Xavier congratulated Omanyala but told him what he must do in order to win.
"Omanyala, congratulations, but he must work on his take-off," the former Vihiga United coach said in a social media post.
21:55 - 09.06.2023
Noah Lyles edges Omanyala as Jacobs finishes seventh at Paris Diamond League
Noah Lyles wins men's 100m at Paris Diamond League ahead of Ferdinand Omanyala as Marcell Jacobs finishes a distant seventh.
Omanyala led until the 70-meter mark before Lyle’s fast acceleration in the remaining 30 meters saw the American win the race.
Omanyala – who specializes in the 100m and 200m races - is fast establishing himself as a sensational sprinter. He is the Commonwealth Games and the African champion.
14:30 - 07.06.2023
ATHLETICS Why Omanyala will take seven-week break from competitions after Paris Meeting
Omanyala returned to the Diamond League Meetings this year since 2021 where he competed at the Meeting in Brussels and finished fourth.
The 27-year-old was the first Kenyan to deliver a gold medal in the sprint category at the Commonwealth Games and is the current African 100m record holder.
The undergraduate Bachelor of Science in Chemistry student is this season's fastest man with 9.84 seconds clocked at the Kip Keino Classic that was held in Nairobi last month.