His second half effort (pictured), from a close range lineout, was the highlight of an often dour game, and gave the Green and Whites a 16-nil lead.

And it actually proved to be the winning score as the home side mounted a late fightback to force a couple of tries.

 

Overall it was again the quality of Nottingham's defence which earned them the points as they overcame that late surge to win 14-16.

 

The win took them above Knights in the Pool 8 table, with this weekend's game against Llandovery at Meadow Lane the decider.

 

Having had most of the early play Nottingham deservedly took the lead with a couple of James Arlidge penalties.

 

But it was scrappy stuff much of the time before Nottingham finally got the opening try of the day.

 

Alex Lewington did well to hack the ball forward into the in-goal area from a poor pass, and with both sides struggling to get a hand on it Jack Cobden pounced to get his second in as many games to give his side an 11 point advantage at the break.

 

After Jacko's historic try Nottingham seemed to lose concentration and were perhaps guilty of letting Doncaster back into it.

 

A late try from replacement Chris Hallam, converted by Jamie Lennard, put them back in contention, and when Tom Davies crashed over, Lennard's conversion meant just two points separated the sides.

 

But Nottingham held out for the win, although Doncaster will rue turning down an earlier kickable penalty in favour of kicking for an unproductive close range lineout.

 

NOTTINGHAM TEAM:  1) Jonny Harris, 2) Shaun Malton, 3) Michael Holford 4) Dan Montagu, 5) Nic Rouse, 6) Rupert Cooper, 7) Brent Wilson (c), 8) Tom Calladine, 9) Sean Romans, 10) James Arlidge, 11) Rhys Crane, 12) Andy Forsyth, 13) Tim Streather, 14) Jack Cobden, 15) Alex Lewington

REPLACEMENTS: 16) Scott Wright, 17) Ryan Bower, 18) Joe Quinn, 19) Alex Shaw, 20) Finlay Barnham, 21) Joe Cobden, 22) David Jackson