Out of top spot, McIlroy texts Tiger congratulations

Tiger Woods, right, talks with Rory McIlroy, of Northern Ireland, as they wait to tee off at the 13th tee during the first round play at the Cadillac Golf Championship in Doral, Fla., Thursday March 7, 2013. (AP Photo/Wilfredo Lee)

HUMBLE, Texas -- Rory McIlroy sent a text message to Tiger Woods on Tuesday, congratulating him on winning at Bay Hill and taking over the No. 1 world ranking again.

Woods responded by telling McIlroy to get going and win this week's Houston Open. A victory would put McIlroy back at No. 1, a spot he held for 32 weeks before Woods' latest win.

McIlroy says losing the top ranking allows him to focus on his game. He's had a rough start to the year, with the low point coming when he walked off the course at the Honda Classic. He wants to build on the 65 he shot in the final round at Doral and says "everything's great" with his new clubs. McIlroy signed with Nike in the offseason.