Djokovic is last one the main court up against American Denis Kudla after British hope Kyle Edmund faces Fernando Verdasco.
Yesterday there were wins for Roger Federer and Rafael Nadal as they moved into the second round.
And Djokovic is looking to get into the third stage. Elsewhere Heather Watson is in action on Court One before Karen Khachanov vs Feliciano Lopez and Caroline Wozniacki vs Veronika Kudermetova.
Court Two also sees the return of Cori Gauff, after she beat Venus Williams in the first round, as she faces Magdalena Rybarikova.
Wimbledon scores LIVE: Latest swom SW19
Wimbledon day three Order of Play
CENTRE COURT – SHOW COURT – 13:00 START
1 Monica Puig (PUR) 94 vs Karolina Pliskova (CZE) [3] 96
2 Kyle Edmund (GBR) [30] 25 vs Fernando Verdasco (ESP) 28
3 Novak Djokovic (SRB) [1] 1 vs Denis Kudla (USA) 3
No.1 COURT – SHOW COURT – 13:00 START
1 Heather Watson (GBR) 86 vs Anett Kontaveit (EST) [20] 88
2 Karen Khachanov (RUS) [10] 49 vs Feliciano Lopez (ESP) 52
3 Caroline Wozniacki (DEN) [14] 113 vs Veronika Kudermetova (RUS) 115
No.2 COURT – SHOW COURT – 11:00 START
1 Stan Wawrinka (SUI) [22] 41 vs Reilly Opelka (USA) 44
2 Simona Halep (ROU) [7] 97 vs Mihaela Buzarnescu (ROU) 99
3 Kevin Anderson (RSA) [4] 33 vs Janko Tipsarevic (SRB) 35
4 Cori Gauff (USA) 110 vs Magdalena Rybarikova (SVK) 111
No.3 COURT – SHOW COURT – 11:00 START
1 Elina Svitolina (UKR) [8] 65 vs Margarita Gasparyan (RUS) 67
2 Robin Haase (NED) 46 vs Milos Raonic (CAN) [15] 48
3 Felix Auger-Aliassime (CAN) [19] 9 vs Corentin Moutet (FRA) 12
4 Madison Keys (USA) [17] 105 vs Polona Hercog (SLO) 107
COURT 12 – SHOW COURT – 11:00 START
1 Victoria Azarenka (BLR) 102 vs Ajla Tomljanovic (AUS) 103
2 Daniil Medvedev (RUS) [11] 17 vs Alexei Popyrin (AUS) 20
3 Andreas Seppi (ITA) 37 vs Guido Pella (ARG) [26] 40
NOT BEFORE 18.00
4 Danielle Collins (USA) 77 vs Anastasija Sevastova (LAT) [12] 80
COURT 18 – SHOW COURT – 11:00 START
1 Su-Wei Hsieh (TPE) [28] 89 vs Kirsten Flipkens (BEL) 92
2 Jeremy Chardy (FRA) 21 vs David Goffin (BEL) [21] 24
3 Sofia Kenin (USA) [27] 121 vs Dayana Yastremska (UKR) 123
COURT 14 – 11:00 START
1 Marie Bouzkova (CZE) 69 vs Maria Sakkari (GRE) [31] 72
2 Ivo Karlovic (CRO) 30 vs Thomas Fabbiano (ITA) 31
3 Marcel Granollers (ESP) 14 vs Ugo Humbert (FRA) 15
COURT 15 – 11:00 START
1 Benoit Paire (FRA) [28] 57 vs Miomir Kecmanovic (SRB) 60
2 Viktorija Golubic (SUI) 126 vs Yulia Putintseva (KAZ) 127
COURT 16 – 11:00 START
1 Pablo Cuevas (URU) 61 vs Jiri Vesely (CZE) 63
2 Steve Darcis (BEL) 53 vs Roberto Bautista Agut (ESP) [23] 56
3 Yanina Wickmayer (BEL) 118 vs Shuai Zhang (CHN) 119
NOT BEFORE 18.00
4 Petra Martic (CRO) [24] 73 vs Anastasia Potapova (RUS) 75
COURT 17 – 11:00 START
1 Madison Brengle (USA) 82 vs Karolina Muchova (CZE) 83
2 Leonardo Mayer (ARG) 6 vs Hubert Hurkacz (POL) 7