By Daily Mail Reporter PUBLISHED: 22:20 EST, 2 March 2014 | UPDATED: 08:16 EST, 3 March 2014 Tiger Woods may not have had much luck in this week's Honda Classic, but at least he had the support of his 'new family'. The world No. 1 was forced to withdraw from today's final round in Palm Beach Gardens, Florida, due to lower back spasms which started during warm-ups this morning. It was clear something was wrong as the 38-year-old struggled to hit good shots and stretched his back several times. Disappointing: Tiger Woods was forced to withdraw from the Honda Classic today due to a persistent back problem
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Tiger Woods, 38, withdrew after 13 holes today due to back pain
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The pain began during warm-ups
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His 'new family' watched him play on Friday
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Lindsey Vonn, 29, was snapped toting around Charlie and Sam, Woods's children with ex-wife Elin Nordegren
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It follows rumors that Vonn and Woods's year-long relationship is on the skids because she demanded marriage
In the past: Tiger Woods and @placeholder divorced in 2010 and have two children