Marinko Matosevic says new coach Mark Woodforde has been key to the Australian ending his poor home form and reaching the Brisbane International quarters.

It doesn’t appear to have toned down his on-court emotions, but Marinko Matosevic believes new coach Mark Woodforde’s work with him played a key role in reversing his form on home soil.

The Australian No.3 went into this week’s Brisbane International having failed to win any of his past nine main draw matches in Australia.

Now Matosevic has racked up two wins in a week and finds himself preparing for a quarter-final against Swiss great Roger Federer following a hard-fought 5-7 7-6 (7-3) 6-4 win over American Sam Querrey at Pat Rafter Arena on Wednesday.

The 28-year-old credits Woodforde, who became Matosevic’s coach following last year’s Wimbledon, with helping him regain focus on his tennis as he battled an off-court issue.

“I was going to pull out of the whole US Open Series and US Open and go home,” Matosevic said.

“He saved me there. I went on to make quarter-finals of Washington, almost semis. I was close to beating (Dmitry) Tursunov.

“Then made quarters of a Masters Series there and then had pretty good results.

“My last match of the season I lost to Ferrer in three; he’s No.3 in the world, so I was playing well before the shoulder and I owe Mark a lot.”

In Wednesday’s match, Matosevic fought back from 2-0 down and saved two set points in the 10th game before succumbing when a backhand return found the net, gifting 26-year-old Querrey the first set.

Matosevic had his service game threatened in the second set but forced a tie-break which he blitzed 7-3.

Fired up by the crowd, Matosevic jumped to a 3-0 lead in the third, only for world No.46 Querrey to break back in the seventh game but the Australian was not to be denied.

He said his poor record in Australia had a lot to do with tough draws but he was feeling good after overcoming Querrey and France’s Julien Benneteau in the opening round.

Another big game looms in the quarters after 17-time grand slam winner Federer breezed past Finland’s Jarkko Nieminen in Wednesday’s night match.

The 32-year-old won 6-4 6-2 in one hour and eight minutes.

In other matches, West Australian Matthew Ebden was brushed aside by second seed Kei Nishikori in the late afternoon match.

The Japanese needed just an hour to defeat Ebden 6-2 6-4 and set up a quarter-final with Marin Cilic.

The Croatian – playing in his second tournament following a four-month doping ban – defeated last year’s Brisbane finalist Grigor Dimitrov 7-5 7-5 to book his last eight spot.

Three Australians remain in the men’s tournament. Lleyton Hewitt takes on sixth seed Feliciano Lopez of Spain while Victorian Samuel Groth is playing South African fourth seed Kevin Anderson.