Given a document, find the main entity about whom the author is writing. Write the full name if mentioned in the text. Note that URLs in the text have been replaced with [Link].

[Q]: Sam Querrey gave the United States a winning start in its bid to reach Saturday's final at the World Team Cup.
 Querrey beat Jan Hajek 6-3  7-5 on Thursday to put the U.S. 1-0 up against the Czech Republic in the Red Group and remain unbeaten in his three singles this week.
 "So far so good " said Querrey. "I thought today was the best I played out of the three matches. So I'm pretty excited."
 Hajek claimed the first break  when Querrey ended a long rally with a forehand error  to go 3-1 up but the American player responded by winning the next five games in a row to take the opening set.
 Both players saved a break point late in the second set before Querrey broke at 6-5  converting his third match point.
 "I've been working this week to try and hit my forehand a little bigger. I felt I did that today " said Querrey. "I felt pretty much anytime I got a forehand  I was able to take control of the point."
 Querrey said his win takes the pressure off the U.S. ahead of Friday's matches.
 "A little bit  yes. I think John (Isner) can go out there and play a little more freely  which is a good thing " Querrey said. "When we have the lead  you can swing away a little bit more than if we were 1-0 down.
 "Then  the Bryan brothers  we expect them to win every match. Hopefully  they are going to do that again."
[A]: Sam Querrey


[Q]: BASEL  Switzerland (AP) — Switzerland is going to the World Cup after left-back Ricardo Rodriguez denied Northern Ireland hope in both games of their playoff at either end of the field.
Switzerland needed only a draw Sunday to advance to Russia  and a tense 0-0 result in rain-soaked Basel was preserved by  Rodriguez 's goal-line clearance in stoppage time from Jonny Evans' header.
 Rodriguez  scored that spot kick on Thursday  when Corey Evans was whistled harshly for an incident that few agreed with.
Switzerland's players Valon Behrami  Granit Xhaka and Ricardo Rodriguez  from right  celebrate winning the World Cup play-offs second leg soccer match between Switzerland and Northern Ireland at the St. Jakob-Park stadium in Basel  Switzerland  Sunday  Nov. 12  2017. (Peter Klaunzer/Keystone via AP)
Switzerland's defender Ricardo Rodriguez clears the ball off the line during the World Cup play-offs second leg soccer match between Switzerland and Northern Ireland at the St. Jakob-Park stadium in Basel  Switzerland  Sunday  Nov. 12  2017. (Peter Klaunzer/Keystone via AP)
 Rodriguez  moved across the goalmouth toward the post and hooked the ball clear as  he  fell backward into the goal.
Switzerland's defender Ricardo Rodriguez  center right  saves a ball on the line goal during the World Cup play-offs second leg soccer match between Switzerland and Northern Ireland at the St. Jakob-Park stadium in Basel  Switzerland  Sunday  Nov. 12  2017. (Jean-Christophe Bott/Keystone via AP)
[A]: Ricardo Rodriguez


[Q]: John Brennan's stint as director of the CIA  ended when President Donald Trump took office in January 2017. Since then   Brennan  has had a chance to observe and analyze Trump's behavior.
 Brennan  spoke with Business Insider US editor-in-chief Alyson Shontell at an Intersport leadership summit in April  for an episode of Business Insider's podcast  "Success! How I Did It." Shontell asked  Brennan  what  he  thought of Trump's leadership so far.
"Clearly  he  did a phenomenal job during the campaign  and I feel as though  he  believes that  his  natural instincts on these issues  whether it be in business or in campaigning  which have been very successful and can continue to drive  him .  He  is somebody who is a very spontaneous individual.  He  reacts to  his  gut.
"A lot of these issues are very  very complex and complicated  and my feeling and impression is that  he  has had only a very  very limited experience in dealing with these international issues and has very superficial understanding of issues that are very  very complicated  whether it be terrorism or North Korea or Russia  China  you name it — cyber issues. And  he  really needs to go to school on some of these issues."
 Brennan  went on to distinguish between Trump the presidential hopeful and Trump the president:
"The gut instinct  the spontaneity that got  him  through the election  that's not sufficient to deal with these issues  and missteps and mistakes on the international front  as well as on the domestic front  really can have very  very damaging locations for the country. And I was hoping that by now we would have seen an adjustment from the candidate Trump to President Trump. But I think  he  has a certain persona  and I think  he  feels as though  he 's been very successful to date  and so  he  has continued in that path.
[A]:
John Brennan