Denmark's badminton world No.1 Viktor Axelsen returns a shot in the Malaysia Open men's singles final. (PHOTO: Annice Lyn/Getty Images)

SINGAPORE — Men's world No.1 shuttler Viktor Axelsen has withdrawn from this week's Malaysian Masters as well as next week's Singapore Badminton Open, citing fatigue after playing - and winning - numerous back-to-back tournaments these past two months.