first-round NFL draft picks
... that the National Football League's New York Giants traded two first-round NFL draft picks to the Minnesota Vikings for Fran Tarkenton in 1967, only to trade him back to the Vikings in 1972?
... that the <a href="./National_Football_League" id="mwAnw" rel="mw:WikiLink" title="National Football League">National Football League</a>'s <a href="./New_York_Giants" id="mwAn0" rel="mw:WikiLink" title="New York Giants">New York Giants</a> traded two <b id="mwAn4"><a href="./List_of_New_York_Giants_first-round_draft_picks" id="mwAn8" rel="mw:WikiLink" title="List of New York Giants first-round draft picks">first-round NFL draft picks</a></b> to the <a href="./Minnesota_Vikings" id="mwAoA" rel="mw:WikiLink" title="Minnesota Vikings">Minnesota Vikings</a> for <a href="./Fran_Tarkenton" id="mwAoE" rel="mw:WikiLink" title="Fran Tarkenton">Fran Tarkenton</a> in 1967, only to trade him back to the Vikings in 1972?