Meanwhile, Jankovic won an epic semifinal against fourth-seeded Russian Elena Dementieva on Saturday night.
In Monday's other second-round clashes, Serena's fourth-seeded older sister Venus beat Russia's Vera Zvonareva 7-5 6-3.
Fourth-seeded Army hosts American on Wednesday, while No. 2 seed Lafayette hosts Holy Cross.
Both Spaniard Moya and fourth-seeded Grosjean had had byes in the first round of the claycourt tournament.
Fourth-seeded Spaniard Montanes moved into the last four by beating Uruguayan eight seed Pablo Cuevas 6-4 6-3.
The fourth-seeded Nets will host the fifth-seeded Bulls in Game 2 on Monday night at 8 p.m.
Another shock came when wild card Joachim Johansson saw off the challenge of fourth-seeded Fernando Gonzalez of Chile.
Fifth-seeded North Carolina jumped out to a 6-0 lead after less than 10 minutes, but the fourth-seeded Pioneers rallied.
Michigan State will play fourth-seeded Maryland, a 72-52 winner over Quinnipiac, on Monday on the fourth-seeded Terrapins' home court.
Among those that weren't: No. 3 seeds Marquette and Georgetown and fourth-seeded Michigan.
The first was a 3-pointer from the right wing that gave fourth-seeded Albany a 46-45 lead with 2:36 left.
He lost just five games and didn't face a break point against fourth-seeded David Ferrer, winning 6-2, 6-2, 6-1.
Earlier, fourth-seeded Agnieszka Radwanksa extended the year's best winning streak to 11 matches.
American Michael Russell upset fourth-seeded Raemon Sluiter 7-6 6-2 and number seven seed Arnaud Clement beat Oliver Gross 6-0 6-2.
Also on Wednesday, Japan's Ai Sugiyama ousted fourth-seeded Daniela Hantuchova of Slovakia 6-3 6-1 to advance to the last eight.
Zheng's compatriot Li Na followed her into the quarterfinals on Monday after stunning fourth-seeded Dane Caroline Wozniacki in straight sets.
The Lions upset No. 5 San Francisco 61-60 in overtime on Thursday then stunned fourth-seeded Santa Clara 60-58 on Friday.
The second-second Catamounts fell to fourth-seeded Albany, 53-49, to fumble a sixth trip to the NCAA tournament in the last 11 years.
The fourth-seeded Ms. Sharapova said Ms. Azarenka earned everything she won here.
Now the fourth-seeded Orange (28-9) get to face top-seeded Indiana (29-6) in the semifinals of the East Regional on Thursday in Washington, D.
Fourth-seeded South Carolina (25-8) was denied its 26th win, which would have been the program's most since joining the Southeastern Conference in 1991-92.
Damyean Dotson scored 23 points, Carlos Emory added 14 points and the hot-shooting Ducks sprinted past fourth-seeded Saint Louis 74-57 on Saturday night.
This year, the fourth-seeded Gaels (20-13) won their way in, beating rival Manhattan 60-57 on Monday night to claim the MAAC tournament championship.
Meanwhile Russian Nikolay Davydenko defeated Jose Acasuso from Argentina 6-4 6-3 while the fourth-seeded Russian Marat Safin beat Jarkko Nieminen from Finland 6-3 6-3.
It was an ace that carried the day for Henman, who will now face South African Wayne Ferreira or fourth-seeded Nicolas Lapentti of Ecuador.
The Croatian will next play another German, Simon Greul, whose fourth-seeded compatriot Philipp Kohlschreiber also progressed into round two by beating Daniel Brands 6-4 6-4.
One of the freshmen, Nik Stauskas, hit all six of his 3-pointers and scored 22 points to lead the fourth-seeded Wolverines past the third-seeded Gators.
Fourth-seeded Yale beat top-seeded Minnesota 3-2 in overtime in the opener.
After getting a much-needed break following Game 7s, the fourth-seeded Bruins will host the sixth-seeded Rangers on Thursday night in their first postseason matchup since 1973.
The Croatian defeated fourth-seeded Serbian Janko Tipsarevic 6-1 6-3 on Saturday, while Wawrinka beat Israeli fifth seed Dudi Sela 6-4 2-6 7-5 in the other semifinal.
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