|LV= County Championship Division One, Headingley|
|Yorkshire 333-7: Bairstow 102, Leaning 77 not out ; Lyth 53|
|Hampshire: Yet to bat|
|Yorkshire 3 pts, Hampshire 2 pts|
Jonny Bairstow hit a century to boost his England Test chances on a tightly-contested first day against Hampshire.
Yorkshire, who dropped seamer Liam Plunkett for a breach of discipline before the game, started poorly before Adam Lyth (53) steadied the innings.
Andre Adams had Lyth caught behind, but Bairstow (102) and Jack Leaning (77 not out) put Yorkshire in charge.
Adams (3-57) removed Bairstow, but Leaning and Tim Bresnan (23 not out) shared a stand of 54 to the close.
Yorkshire were boosted by the return of three players from England's tour to the Caribbean, but pace bowler Plunkett was omitted after failing to attend a photo call and practice.
Hampshire made the brighter start despite the absence of skipper Jimmy Adams, whose wife is due to give birth, as James Tomlinson trapped Alex Lees leg-before, and then had Cheteshwar Pujara caught at second slip for 18.
Lyth's assured knock saw Yorkshire safely through to lunch, but both he and captain Andrew Gale (30) fell in quick succession to veteran seamer Adams.
Bairstow then set about dismantling the Hants attack as he brought up his century from just 104 balls, before edging behind to debutant wicketkeeper Lewis McManus two balls later.
Gareth Berg removed Bairstow's fellow England hopeful Adil Rashid for a duck, but Leaning and Bresnan (23 not out) gave Yorkshire hope of achieving maximum batting points on day two.
Yorkshire wicketkeeper Jonny Bairstow:
"We've missed three games already this season, but the guys have done outstandingly well, and now it's important for us to make a contribution
"I'm concentrating on scoring as many runs and taking as many catches as possible. I can't control what happens above.
"I was pleased with the way I struck the ball, and the movements I had, given I'd not been out there for a while.
"To be back playing for Yorkshire is a great feeling."
Hampshire wicketkeeper Lewis McManus:
"It was a brilliant experience, just to get out there with the guys.
"It's something I've worked towards for the last couple of years so it's really good to get it under my belt - especially to play at a famous ground like Headingley.
"In the morning there were definitely a few nerves. You want to do well for the lads and support the bowlers.
"It was good to get that first catch, especially after going close once before."