Jacobson opened with a 66 and was two shots out of the lead. He got the news late Thursday night that his wife, Erika, had started having contractions. She was not due for another three weeks.
The 29-year-old Swede is emerging as one of the top players from Europe. He won three times on the European tour last year and is No. 21 in the world ranking.
Jacobson is playing the PGA Tour this year and has a home in Jupiter, Fla.
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