Given a more beneficial position than Eastmond, Richards made no mistake with his conversion.
Shortly afterwards, Eastmond's high kick caused problems for the Wigan defence with Cameron Phelps knocking on.
However, Paul Wellens (2), Tony Puletua, Lee Gaskell and Kyle Eastmond sealed it for the visitors.
Clough took Roby's intelligent pass to conclude the first-half scoring, with Eastmond converting all five tries.
Francis Meli crossed early on for Saints but Kyle Eastmond failed with the conversion in windy conditions.
Gaskell pounced from Jon Wilkin's high kick for another try and Eastmond darted over at the corner.
But Saints proved too strong as Kyle Eastmond and Keiron Cunningham added some gloss to the scoreline.
After the video referee had signalled he was happy with the score, Eastmond added the straightforward conversion.
It's tough for the side to adapt, but hopefully we'll have Kyle Eastmond back at the weekend.
Bath chief executive Nick Blofeld has added his weight to the bid to bring Eastmond to The Rec.
Saints took the lead through Lee Gilmour with Kyle Eastmond adding the extras before Carl Ablett hit back.
Both sides threatened at times but it was Eastmond who broke Wigan's hearts.
Gardner again demonstrated clinical finishing to complete his hat-trick before Eastmond evaded three defenders in an electrifying individual burst.
"We've played against each other since we were kids and it's always good to test myself against Sam, " said Eastmond.
But Eastmond once again came to the fore and finished decisively before Graham and Meli added tries six and seven.
Without the injured Kyle Eastmond, as expected, Matty Smith took over at scrum-half for Saints, with Jon Wilkin at stand-off.
Eastmond then went close in the corner, a wonderful tackle from Sinfield denying him a second try of the night.
Then, just five minutes later, Eastmond's superb pass created the space for Gardner to go in at the right corner.
An interception try from Ryan Hall made it 28-12 before a Kyle Eastmond grubber put Tom Briscoe over late on.
The clash between Eastmond and Wigan stand-off Sam Tomkins will go a long way towards determining which club secures bragging rights.
Gardner then ran in the first of his two tries, converted by Eastmond, who earned a 16-point cushion with a penalty.
And a comeback looked on when captain James Graham crashed over as first receiver on the last tackle, Kyle Eastmond converting.
First-choice Saints half-backs Leon Pryce and Kyle Eastmond joined the club's lengthy injury list during last weekend's agonising defeat to Leeds.
And, although comparatively new to the fixture at just 20, half-back Kyle Eastmond also knows full well the importance of beating Wigan.
Eastmond missed the conversion from out wide but after that both sides committed a host of errors in the tricky wet conditions.
Eastmond's score was the pick of the bunch, the 19-year-old showing awesome speed as he raced 80 metres for an intercept try.
And Eastmond is looking forward to going up against his England team-mate.
Even then, there was one last chance for both sides to snatch it, Tickle and Eastmond both having a go at drop-goals.
England deservedly scored a second try, Fox touching down in the corner in the 19th minute after outjumping Hayne to grab Kyle Eastmond's precise crosskick.
Once Eastmond slotted a penalty between the sticks on 20 minutes, it looked unlikely the Wolves would be able to stay with them.
应用推荐