Marc Warren and Andy Sullivan have taken a share of the lead at the halfway stage of the Portugal Masters in Vilamoura.
The pair sit with a one-shot lead, with Jens Fahrbring and Padraig Harrington the closest challengers behind them.
Warren carded seven birdies and suffered the one bogey during his round to finish with a six-under-par 65, while Sullivan had an unblemished round with 10 birdies.
David Lipsky sits fifth in the field following a five-under-par 66 round.
