NAIROBI, April 14 (Xinhua) -- Olympic javelin champion Julius Yego of Kenya has promised to return to competition stronger after his comeback ended in a disaster at the Commonwealth Games.

Yego failed to make the finals and will return to the drawing board ahead of the Diamond League season, which starts next month.

The Kenyan will launch his track and field season in Shanghai, China and wants to quickly forget his nightmare throw in Commonwealth Games.

It was the first major competition for the 28-year old Kenyan since his nagging groin problem halted his progress and saw him loss both the Rio Olympic Games and World Championships javelin titles.

"Mistakes make those who believe in winning like me stronger. Sorry for everyone who believed and counted on me to deliver. I may have disappointed you, I'm disappointed too," he said on Saturday.

Yego has a full year to get his grove back with neither World Championships nor the Olympics in 2018. He still believes he will be fit enough to compete at the 2020 Tokyo Olympics.

"I make mistakes and I'm heartbroken. However, I will come back stronger and make you happy. It was a huge one but sorry for the miss. Sometimes things go not our way," he added.

Lack of technical coaches and equipment in Kenya have always hampered Yego's progress, but he believes he will overcome it.