"So it just goes to show you how we as players come so far in our careers and we still have other lives that mean so much to ourselves", she added.
Federer got 2019 under way with a 6-4 6-1 defeat of Tiafoe before Williams made it two wins out of two, getting the better of Bencic 4-6 6-4 6-3.
Williams and Bencic followed the men on court for the women's singles.
Federer faced three break points in his first service game, but was near ideal from that point on as he wrapped up the contest in 57 minutes at RAC Arena on Sunday night.
Ahead of that tie, Federer said: "The problem is it's the first of January".
Williams also said the coming match was "like a dream come true".
Her appearance in Perth will be her first tournament since her US Open meltdown, where she was handed a series of code violations in her loss to Naomi Osaka in the final. "It's nice that I'm feeling as good as I am and played a wonderful match against Cameron".
It was another encouraging performance from Federer as he builds his preparation for the upcoming Australian Open in Melbourne, where he will be looking to win a third successive title and seventh overall.
The Steelers did manage to narrowly avoid disaster and beat the lowly Bengals , but it was too little, too late. The NFL Injury Report for Week 17 has a lot of big names that could miss some pretty important games.
Nancy Pelosi is set to reclaim the speaker's gavel on Thursday, when Democrats take control of the House of Representatives. On Dec. 21, however, the president tweeted out a drawing of a barrier made of steel slats, calling it "totally effective".
The fact that bantamweight champion Nunes did that was jaw-dropping in its own right, but how she did was even more wonderful . Jon "Bones" Jones and Alexander Gustafsson will rematch in the main event for the vacant light heavyweight championship.
That is not going to happen. "Why should I change?" "It's a supporters and journalists game, but we can not be a part of it". Pep Guardiola asserts he has no intention of changing City's style of play, following a hard period of results .
Meghan and Harry tied the knot in May this year, and announced they were expecting their first child together in October . Middleton, 36, and Markle previously reunited last week for the royal family's Christmas luncheon at Buckingham Palace.
Prime Minister Sheikh Hasina gestures after casting her vote during the general election in Dhaka , Bangladesh, Dec. 30, 2018. The leadership of Bangladesh has alternated between Hasina and Zia, allies-turned-foes, over the last three decades.
The company filed for bankruptcy in October and was in the process of closing 180 stores before announcing 80 more on Friday. For much of the 20th century it was not only the nation's largest retailer, it was the largest private-sector employer.
Unfortunately thousands users were not happy with the drastic change and immediately began voicing their disapproval on Twitter . The furor was swift and after only about an hour, the update was removed and Instagram was back to normal.
Zaccheaus found himself alone on a slant, ending a 39-yard drive that took eight plays and almost 4 1/2 minutes. The Cavaliers controlled the ball for more than 20 minutes of the first half and built a 14-0 lead at halftime.
Philippine storm death toll surges to 68
The tropical depression, which has since been downgraded to a low pressure area, left the Philippines on this afternoon. Rescue teams were still searching for several missing in the affected areas, emergency officials said.
Lady Gaga Unveils Anime Cyborg at Her Las Vegas Show
Pop star Lady Gaga began her two-year Las Vegas residency on Friday with a supernatural, space themed set titled Enigma . Elements of the ENIGMA show were created via motion capture and CGI, capturing elements of Gaga's own movements.
Canadian detained in China freed
Rhona McIver said Sarah's mother and sister have driven to B.C.to pick her up. He has also not been allowed to apply for bail or see a lawyer.
Bayern and Dortmund ready to battle for Callum Hudson-Odoi
Meanwhile, Chelsea in their response wants at least £22.5m for the attacker before they can allow him leave anytime soon. Watford's goalkeeper barged Hazard to the floor in the 58th minute and the Belgian made no mistake from the penalty spot.
Warriors won't match Cavs' offer sheet for Patrick McCaw
McCaw appears more than ready to move on from the Warriors, and had been negotiating with other teams as the season progressed. The Cavaliers or Warriors could waive McCaw before January 7 and not be responsible for paying the remainder of his contract.