Serena and Venus Williams played both singles and doubles at Wimbledon on Thursday.
Despite looking emotionally and physically drained by her longest run at Wimbledon for seven years, Venus didn't throw in the towel.
"I'm of course excited to be in the women's final right now and it was always a dream for me to one day be on the centre court, on the last day, playing the final".
Serena had already beaten Vesnina in the singles semi-finals, while Venus was beaten by Angelique Kerber. Kerber was broken, but held on to win the set, and then held serve throughout the second set to close out the match.
The defending champion has now reached the final of all three Grand Slams this year but is still waiting for the win which will draw her level with Steffi Graf on 22 major titles.
That Australian Open victory gave Kerber her first major title in her first major final. Kerber defeated Venus Williams, 6-4, 6-4 in the other semifinal.
Kerber ended another marathon point with a zinging passing shot to clinch the match after an hour and 13 minutes for a spot into her career-first Wimbledon final.
Kerber's clash with Williams is a repeat of this year's Australian Open final.
So this stay at the All England Club - her 19th appearance - is not quite over for Venus.
Time to break down their strengths, weaknesses and possibilities for a spectacular final. Smart money is on her finding more success if she can keep up her strong play after her Wimbledon exit. Williams has won Wimbledon six times. Venus was playing well and beat a lot of good players here.
There will not be an all-Williams sisters Wimbledon final.
Serena Williams has again taken a 3-0 lead, this time in the second set, by breaking Elena Vesnina's opening two service games in the Wimbledon semifinals.
The 12 unforced errors from Williams in the first set was twice her opponent's total.
In beating Vesnina, Williams won 96% of the points in which her first serve was good, losing just one of those. It was a different story for Vesnina who wasn't giving a great performance like in her quarterfinal match, the Russian was struggling to keep her serve and has yet to be on the scoreboard. The most erratic game in the set from Williams happened while Vesnina was serving.
Serena triumphed in 2002, 2003 and 2009 while Venus came out on top in 2008.
Last year, the American sisters met in the fourth round, with Serena winning en route to her sixth title at the All England Club.
But she now has a chance to make amends for those unexpected defeats and claim a 22nd grand slam singles title.