LONDON - Tiger Woods stayed top of the world rankings on Monday following Rory McIlroy’s failure to win the Houston Open on Sunday.

The 37-year-old American returned to the top last week after an absence of two and a half years, replacing the 23-year-old Irishman, who has struggled with his game this year following a change of clubs and ball in the close season.

Woods will go into next week’s Masters Tournament at Augusta National with back-to-back wins boosting his confidence, while McIlroy will take part in the Texas Open in another bid to win for the first time this year.