|Ladbrokes Challenge Cup|
|Leigh (10) 10|
|Tries: Burr, Naughton Goals: Reynolds|
|Hull KR (16) 23|
|Tries: Shaw 2, Lawler, Greenwood Goals: Ellis 3 Drop-goal: Ellis|
Championship leaders Hull KR caused an upset by putting lowly Super League side Leigh out of the Challenge Cup.
After tries by Ryan Shaw and George Lawley were cancelled out by Leigh, James Greenwood's converted late first-half try earned Rovers a 16-10 lead.
Victory was then sealed by a late drop-goal from scrum-half Jamie Ellis, who also landed three kicks.
Winger Shaw's last-gasp converted put the icing on a hard-earned fifth-round win for the 2015 beaten finalists.
Leigh had pulled back a 10-0 deficit with tries from Lachlan Burr and Curtis Naughton before Rovers edged ahead again by the interval.
But, after going behind again, once Leigh winger Naughton had seen a second try disallowed for a forwards pass, the visitors' defence held out against the side they effectively swapped places with at the end of last season.
Leigh: Ridyard; Hampshire, Crooks, Dawson, Naughton; Reynolds, Drinkwater; Acton, Hood, Weston, Vea, Stewart, Hansen.
Replacements: Pelissier, Tickle, Hopkins, Burr.
Hull KR: Quinlan; Shaw, Hefernan, Salter, Hodgson; Abdull, Ellis; Scruton, Lunt, Johnson, Lawler, Blair, Kavanagh.
Replacements: Greenwood, Dockar-Clay, Mulhern, Wardill.
Referee: James Child (RFL).