Luke Donald and Russell Knox are one shot off the lead at the RBC Heritage at Hilton Head in South Carolina.
Former world number one Donald, 38, shared the lead after the opening round but a level-par round of 71 for the Englishman on Friday saw him reach halfway on five under.
Scotland’s Knox, 30, shot a six-under 65 to join Donald in tied fourth.
World number one Jason Day is in a three-way share of the lead on six under par.
He is joined by Americans Kevin Chappell and Charley Hoffman.
Knox, who won his first PGA tournament at the WGC-HSBC Champions event in November, shot eight birdies for a 66 that proved the best round of the day.
Donald is without a PGA or European Tour win since 2012, but was on two-under for the day heading into the back nine on Friday before double bogeying the par-three 14th.
American Patton Kizzire sunk a 41-foot putt to make birdie on the 18th to join Knox and Donald on five under par.
England’s Greg Owen and Ian Poulter made the cut, but Paul Casey and Matthew Fitzpatrick missed out on three over par.
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