(Photo credit: Justine Willard-Imagn Images)

April will go down as a month that manager Rob Thomson and the Philadelphia Phillies would prefer to forget.

With 11 losses in their last 12 games and only nine victories on the season, the Phillies are desperate for a win Tuesday when they host the San Francisco Giants in the opener of a three-game set.

Philadelphia enters the week with a 9-19 record, matching the New York Mets for the worst mark in baseball. The Phillies' run differential (-54) is by far the worst in the sport, putting Thomson on the hot seat if things don't turn around quickly.

'Well, that's natural, right?' Thomson said of his job security. 'It's normal. And I've never worried about that in my entire career. ... I don't have time to think about it.'

The Phillies snapped a 10-game losing streak Saturday with an 8-5 extra-inning victory over the Atlanta Braves. But the momentum didn't last long, as they fell behind early in Sunday's 6-2 series-finale loss.

Aaron Nola allowed three runs in the first inning and three more in the second, and the Phillies' bats managed only one hit (a single) in six innings against Chris Sale.

'It's not like the record is going to change overnight,' said designated hitter Kyle Schwarber, whose two-run homer in the eighth accounted for the Phillies' offense on the day. 'It's going to be a continuous grind, and we're ready for that. We know that there's a long road ahead.'

The Phillies' attempted path to recovery will begin Tuesday with Jesus Luzardo (1-3, 6.91 ERA) on the mound. The left-hander has labored through the first month of the season, although he was able to limit the damage in his most recent outing.

Despite allowing five hits and four walks in 4 2/3 innings against the Chicago Cubs last Tuesday, Luzardo gave up just one run in an eventual 7-4 defeat. Still, he expects more of himself after signing a five-year, $135 million contract extension in the offseason.

'It's very frustrating,' Luzardo said. 'As a whole, we don't feel like we're doing the job that we need to do. ... I think there's been times that a lot of us think that we can pick up the slack, me included.'

Luzardo, who is 2-1 with a 5.23 ERA in six career starts against San Francisco, will be facing a team that has turned things around following a slow start of its own.

The Giants have won seven of their last 10 games after beginning the season 6-12. They have won three series in a row -- against the Washington Nationals, Los Angeles Dodgers and Miami Marlins.

In Sunday's 6-3 triumph over Miami, San Francisco's Casey Schmitt hit a go-ahead home run for the second straight game.

'That's what we're here for: to drive in runs and be productive,' said Giants third baseman Matt Chapman, who walked and scored in the decisive seventh inning. 'But we are a team, and Casey's hot right now.'

Landen Roupp allowed just two hits and three runs over 7 2/3 innings -- a performance that Tyler Mahle (1-3, 5.26) would love to copy in Tuesday's contest.

Mahle is coming off a sparkling effort in last Wednesday's 3-0 win over the Dodgers, as he gave up just three hits and two walks over seven innings.

In four lifetime starts against Philadelphia, Mahle is 1-1 with a 2.41 ERA. He held the Phillies to three hits over 5 2/3 scoreless innings April 8 in San Francisco, helping the Giants take two of three in that series.

--Field Level Media