Tom Lewis turned in 31 to open up a one-shot lead heading into the back nine of the final round of the Portugal Masters.
The Englishman won this event in 2011 in just his third start as a professional and arrived at Dom Pedro Victoria Golf Course in fine form, having finished first and third the past two weeks on the Challenge Tour.
He looked unlikely to contend after an opening 72 but he has birdied 22 of his last 45 holes to get to 21 under and lead the way from Lucas Herbert. -----
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