  The next-to-leading order (NLO) P-wave Coulomb Green function contributes at
third-order to top-pair production in e+ e- collisions near threshold. In this
paper we compute the NLO P-wave Green function in dimensional regularization,
as required for a consistent combination with non-resonant production of the W+
W- b\bar{b} final state, and present a phenomenological analysis of the P-wave
contribution. We further briefly discuss squark production near threshold and
top-pair production in gamma gamma collisions, where no S-wave contribution is
present, and the P-wave thus constitutes the dominant production process.
