Prized Padres prospect Fernando Tatis Jr. is expected to require surgery and miss the rest of the season after suffering a thumb fracture on his non-throwing hand (left) during a head-first slide Thursday night with Double-A San Antonio.

The information the Padres have after Tatis underwent X-rays indicates the injury will not affect Tatis beyond this year.

Tatis is expected to undergo an MRI in San Diego this weekend.

There is still hope that after the swelling goes down and an MRI can be performed that the diagnosis will change and Tatis can forego surgery.


The recovery timetable for the type of injury Tatis has is 6-8 weeks.

The 19-year-old shortstop, ranked No. 1 in ESPN’s midseason top-prospect rankings, homered to left field to open Double-A San Antonio’s 7-4 win at Frisco.

Four innings later, Tatis was on first base after a pitch grazed his elbow guard and then attempted his 17th steal. He was thrown out and remained in the game until Matthew Batten pinch-hit for him in the sixth inning.

Tatis is hitting .286/.355/.507 with 16 homers, 43 RBIs and 16 steals in 88 games with the Missions (57-39).


Right-hander Chris Paddack (2-1, 1.59) struck out three in Double-A San Antonio’s 7-4 win on Monday, allowing only two hits and a walk in five shutout innings.

The fast-rising Paddack has struck out 12, walked three and scattered five hits in 17 innings since his promotion to the Texas League.

Catcher Austin Allen (.306) went 3-for-5 with two doubles and two RBIs and a run scored and first baseman Kyle Overstreet (.277) doubled in two runs.

Third baseman Ty France (265) and right fielder Michael Gettys (.248) both collected three hits.


Center fielder Buddy Reed (.118) went 0-for-5 with three strikeouts.

Lyles’ rehab start

At least Jordan Lyles got his work in.

The Padres’ rehabbing right-hander was knocked around for three home runs in 2 2/3 innings in Triple-A El Paso’s 16-1 loss, the most lopsided loss in Chihuahuas history.

Lyles allowed four runs on six hits and no walks in the 46-pitch start, his first game action since feeling a “strange” sensation in his elbow while warming up in the San Francisco bullpen last month.


The 27-year-old Lyles could get at least one more minor league start before rejoining the Padres’ rotation. He was 2-4 with 56 strikeouts and a 1.28 WHIP in 68 2/3 innings this year in the majors.

Lyles wasn’t the only pitcher to have a tough day on the mound.

Right-hander Colin Rea (6.11) allowed five runs in three innings before two position players finished the day on the mound.

Diego Goris allowed seven runs in 2/3 of an inning before Brett Nicholas allowed three hits before recording the final out.


Second baseman Luis Urias (.281) went doubled twice in four at-bats.

The Chihuahuas are 52-46.

THURSDAY’S GAMES

HIGH SINGLE-A LAKE ELSINORE (13-15, 47-51)

Storm 8, Modesto 3: LHP Nick Margevicius (2-1, 3.71) struck out seven and allowed one run on six hits in six innings in the win. It was his second quality start in three appearances since his promotion from the Midwest League. RHP Carter Capps (3.09) allowed two runs in two innings. LF Nate Easley (.268) drove in two runs on his second homer and 3B Hudson Potts (.279), 1B Brad Zunica (.250) and DH Ruddy Giron (.266) each had two hits. C Luis Torrens (.280) drove in two runs. RHP Dauris Valdez (4.19) struck out three in the ninth.

LOW SINGLE-A FORT WAYNE (13-14, 45-51)

Burlington 4, TinCaps 2 (12): 2B Esteury Ruiz (.260) went 4-for-5 and hit his ninth homer and 3B Luis Almanzar (.177) went 2-for-4 with an RBI and a walk. LHP Tom Cosgrove (4.62) allowed two runs on four hits and a walk in six innings in the start. RHP Austin Smith (2.20) struck out five in two scoreless innings and LHP Travis Radke (1.95) struck out four over three shutout innings. LHP Fred Schlichtholz (1-3, 4.00) allowed two runs – one earned – in the 12th.

SHORT-SEASON TRI-CITY (16-18)

Eugene 7, Dust Devils 3: RHP Sam Keating (2-3, 4.73) allowed five runs – four earned – on seven hits and two walks in 4 2/3 innings. 1B Justin Paulsen (.293) went 1-for-3 with a triple and a run scored and DH Luis Asuncion (.238) went 1-for-3 with an RBI, a walk, a run and two steals (2).

ROOKIE DSL PADRES (22-17)

The Padres and D-backs were tied 3-3 in the sixth inning when the game was suspended due to rain. LF Adrian Antunez (.187) drove in all three Padres runs on his first homer and swiped his seventh base.

Staff writer Jeff Sanders contributed to this report.


Padres Videos × On Now Padres pitcher Chris Paddack on start vs. Mariners and possibility of making rotation On Now Meet the Padres: Ian Kinsler 5:18 On Now Catching up with Padres OF Franmil Reyes 5:18 On Now Meet The Padres: Greg Garcia 5:11 On Now Catching up with Padres reliever Craig Stammen 5:33 On Now Meet the Padres: Logan Allen 6:23 On Now Meet The Padres: Manny Machado 9:08 On Now Meet The Padres: Chris Paddack 5:08 On Now Three things that stood out from Machado's first day with the Padres 1:53 On Now Padres manager Andy Green on Machado joining his roster

jeff.sanders@sduniontribune.com; Twitter: @sdutSanders


UPDATES:

11:36 a.m. Friday: This story was updated with new information.

10 a.m. Friday: This story was updated with quotes from a radio interview done by A.J. Preller.

8:55 p.m. Thursday: Original publication.