Nakamura would be happy to open up the position with either d6-d5 or (more likely) the f7-f5 break, and those require preparation.
1. e2e4  1... e7e5  2. f1c4  2... g8f6  3. d2d3  3... b8c6  4. b1c3 Quite a rare line in Esipenko's practice. 4... c6a5  5. d1f3 \"A specialty of the Australian grandmaster Ian Rogers.\" (Emms) 5... a5c4 That's too good of a bishop to be neglected $1 6. d3c4  6... d7d6  7. g1e2 Both sides make all the mandatory moves to finish the development. 7... c8e6  8. b2b3  8... f8e7  9. e1g1  9... e8g8  10. a2a4 