Baz (4-14) took the loss Sunday against Tampa Bay, allowing three runs on five hits and three walks over 5.2 innings. He struck out three.
The Angels designated Fulmer for assignment Sunday.
Guzman is out of the lineup for Sunday's game against the Rangers.
The Angels reinstated Kikuchi (shoulder) from the 60-day injured list to start Sunday's game against the Rangers.
O'Neill is out of the lineup for Sunday's game against the Rays.
Trout went 2-for-4 with a double, one RBI, one run scored and a stolen base in Saturday's 3-0 win over the Rangers.
Johnson (3-7) earned the win against the Rangers on Saturday' allowing one hit and two walks while striking out three over seven scoreless innings.
Neto went 3-for-5 with two doubles, a triple, two runs scored and a stolen base in Saturday's 3-0 win over the Rangers.
Watson earned the save in Saturday's 3-0 win over the Rangers, striking out one in a perfect ninth inning.
Basallo went 1-for-1 with a two-run home run in Saturday's 3-2 extra-inning win over the Rays.
