League sources say Anthony Davis — sidelined by a left adductor strain in the third quarter of his Mavericks debut on Feb. 8 — is in increasingly strong contention to make his return to the floor during the Mavericks’ upcoming swing through the Eastern Conference. Dallas has a New York City back-to-back against the Nets and Knicks on Monday and Tuesday, then plays at Orlando on Thursday before the trip finale in Chicago on Saturday.