Arlovski will face Australian Soa Palelei, while Pulver is set to scrap with Eric Kelly.
Palelei announced his fight on Twitter.
The onetime UFC veteran has mostly fought in his home country over the last few years, amassing a seven-fight win streak since his last defeat. Palelei (17-3) has been defeated only a single time since his sole UFC bout, which came in 2007 when he lost to Eddie Sanchez. Since then, he's 9-1 with his only defeat coming at the hands of current Strikeforce champion Daniel Cormier.
Multiple outlets have reported the Pulver-Kelly scrap, which the promotion has yet to officially confirm.
"Lil Evil" has alternated wins and losses in his last five bouts, most recently defeating Jesse Thorton in April to improve his record to 26-16-1.
His opponent Kelly is a perfect 7-0 so far in his career, with six of his wins coming by submission.