Diaz took an awkward step at first base and went sprawling with a left ankle injury. X-rays were negative on the ankle, and Diaz is considered day to day with the injury.
Rays: Jake Faria (2-1, 4.60) makes his seventh start of the season.
The 27-year old is hitting.210 with six home runs and 12 RBIs over 31 games with the Jays this season.
Toronto finished an eight-game road trip at 4-4.
The Jays were certainly hoping from stability from Happ after dodgy outings by Jaime Garcia and Joe Biagini in Thursday's doubleheader in Cleveland.
Toronto manager John Gibbons was ejected for the third time in five days after Ryan Tepera was called for a balk by plate umpire Jeremie Rehak in the eighth.
ST. PETERSBURG, Fla. (AP) - Toronto's record against Tampa Bay since 2008 is its poorest against any AL team.
Sale of Cambodian newspaper sparks fears of crackdown on press freedom
Under government-related projects on the company's website it lists "Cambodia and Hun Sen's entry into the Government seat". Cambodia ranked 142 out of 180 countries on the 2018 World Press Freedom index compiled by Reporters Without Borders.
"I've got to locate that pitcher better because I do throw a lot of them", Estrada said. The Blue Jays previous year won the season series for only the second time in a decade.
"I just wanted an explanation", Gibbons said.
"For the most part I'm trying to focus on my overall health and just try to stay on the field", said Pompey who belted out a single in his first at bat. Wilson Ramos, Denard Span and Adeiny Hechavarria also drove in runs for the Rays, who've won 10 of 13 after a slow start.
Flashing the speed that makes him a valued outfielder of the future for the team, Alford parlayed the second big-hit single of his career with his first stolen base in the majors.
Roberto Osuna allowed Daniel Robinson's one-out single in the ninth, then got Mallex Smith to ground into a forceout and retired Gomez on a groundout. The over has cashed in 10 of those games, compared to nine that've hit the under against righty starters. Last season was especially hard for Estrada, who was 0-4 with a 10.61 ERA in four starts when he allowed 35 hits, walked eight in 18 2/3 innings for a WHIP of 2.30. The Blue Jays will give the call to 34-year old right-hander Marco Estrada, and the Rays will counter with 29-year old right-hander Chris Archer.
Ramos had two hits, extending his hitting streak to 14 games. "I thought he was a little bit off but he kept us right there".
Blue Jays: OF Curtis Granderson, who left Friday's game with right hamstring tightness, will have his status re-evaluated Tuesday. He posted a terrific 2.65 ERA in five starts against Toronto last season, and he features a 7-4 record with a 3.09 ERA in 24 career starts against the division rivals. He is just 1-1 but has a 1.24 ERA - that's five earned runs in 36 1/3 innings - in 13 career games, including five starts, against Tampa Bay.