Wimbledon Day 2: Three of ATP's Big Four, Kvitova in action

LONDON – Wimbledon Day 2 features three of the ATP's Big Four, defending champion Petra Kvitova, Americans Madison Keys and Jack Sock, Eugenie Bouchard and more. Play begins at 7 a.m. ET on ESPN. The full television and broadcast schedule can be found here. Full order of play for Tuesday can be found here.

Roger Federer and Andy Murray take Centre Court: For the second consecutive major, Federer will play Bosnia's Damir Dzumhur, ranked No. 87, as the second match on Centre Court. Federer beat him easily last month at the French Open and should move through with ease again. No. 3 seed Murray plays Kazakhstan's Mikhail Kukushkin in the third match on Centre Court. Murray is 2-0 against Kukushkin but this will be their first meeting in three years.

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Rafael Nadal takes on Thomaz Bellucci on No. 1 Court: Bellucci is primarily a clay court specialist—in an even more pure way than the more well-rounded Nadal—but confidence is confidence. He's in the midst of a very strong season. Nadal should move through here but Bellucci can hit a big ball and if he finds his range, he'll make Nadal work. Nadal has not lost a set to Bellucci in four matches, including a 7–6, 6–2, 6–3 loss here in 2012.

Petra Kvitova kicks off her title defense: The defending women's champion always plays her first match on Centre Court on Tuesday and that's the slot Petra Kvitova will take as she opens her tournament against Kiki Bertens. No. 108 Bertens is, like Kvitova, a big hitter who struggles with consistency but she did put together a run to the semifinal of s'Hertogenbosch a few weeks ago. This will be their first meeting.

Madison Keys looks to find her grass form: Illness derailed Keys' preparation for Wimbledon and forced her out of Birmingham. She comes into the tournament with just one grass match under her belt, a 6–2, 6–2 loss to Belinda Bencic in Eastbourne. She plays Stefanie Voegele (fourth match, Court 17). The Swiss won their only match, a 6–4, 6–3 win at Brisbane in 2013. Keys' game is based a lot on her confidence and if she can get through this match cleanly she'll be in a good frame of mind for the rest of the tournament.

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Jack Sock and Sam Groth will feature big serving: Seeded for the first time at Wimbledon, Sock is looking for his second career win (in singles) at the All England Club. While this is the first meeting between Sock and Groth in singles (second match, Court 16), they've already faced each other in doubles, on Monday. Sock and Vasek Pospisil, the defending doubles champions, beat Groth and his partner Sergiy Stakhovsky in four sets in the first round, meaning both men have had a good long look at each other's monster serves.

Eugenie Bouchard tries to get on track...fast: Last year's finalist has lost 12 of her last 14 matches and retired from her last match due to an abdominal injury. She plays China's Duan Ying-Ying, a big hitter whose style should translate well to grass. Fans in China call her "Chinese Davenport" given her height and power. Well, American Davenport was pretty good on this green stuff.

American watch: Fresh off his run to the final in Nottingham over the weekend, Sam Querrey plays Igor Sijsling in the first round (second match, Court 5). Varvara Lepchenko goes for the upset bid against No. 20 Garbine Muguruza (first match, Court 15), Christina McHale plays Johanna Larsson (fourth match, Court 7), and Sachia Vickery plays No. 8 Ekaterina Makarova (third match, No. 2 Court)

Upset watch: No. 52 Lucie Hradecka vs. No. 13 Agnieszka Radwanska (second match, Court 12). With the Pole mired in a slump, Hradecka's flat hitting could cause her problems. This is their first meeting since 2006 and the Czech won all three of their previous matches.

Wimbledon Day 2: Three of ATP's Big Four, Kvitova in action

SNAPSHOTS FROM DAY 1

Wimbledon Day 1

CoCo Vandeweghe

Margarita Gasparyan

Novak Djokovic

Serena Williams

Nick Kyrgios

Bethanie-Mattek Sands

Milos Raonic

Daniel Gimeno-Traver

Francesca Schiavone

Marinko Matosevic

Maria Sharapova

Stan Wawrinka

Maria Sharapova