Roland-Jones then ripped through the South Africa top order as the Proteas slumped to 61-7 before closing on 126-8, still 28 runs shy of the follow-on target.
Roland-Jones struck first when Dean Elgar was caught behind to the last ball before tea, but admitted he was far from sure of the dismissal until it was confirmed on DRS.
All-rounder Vernon Philander was discharged from the hospital on Saturday morning will bat on day three of the third test against England at the Oval, Cricket South Africa said.
Bavuma also had praise for Roland-Jones.
But the rain that started to fall during the lunch break suggested that novice skipper Root might have to declare earlier than he would like if he wants to give his bowlers enough time to force a win that would put England an unbeatable 2-1 up in this four-match series with just one to play.
South Africa-born and raised Jennings - England- qualified through his mother and residence - had launched his Test career with a century on debut against India in Mumbai in December.
Westley scored just nine runs from 54 balls in 85 minutes, miscuing deliveries from Morkel and Rabada as he consistently targeted the leg-side but did not offer a chance, while Root helped himself to 10 off one particular wayward over from Morris.
England remain in command of third Test despite rain-affected day
Stokes ensured his early hard work and former captain Alastair Cook's innings of 88 did not go to waste.
Stokes was the last man out, caught at long-off looking to launch Morkel, but only after he had delighted a noisy Oval and taken England to a strong total.
If Roland-Jones takes one more wicket in South Africa's first innings he will be the first player since Graham Onions in 2009 to take 5+ wickets in their debut bowling innings for England.
England's Toby Roland-Jones told BBC Sport: "It was a pretty special day, we wanted to push ourselves as high as possible in some testing conditions".
He said: "When I got close to a hundred Jimmy [Anderson] said "What are you going to do?' - and I think I just said 'Wallop". Stokes reached his hundred with the second of three consecutive sixes.
But Stokes got the balance right on Friday.
"It's not often you see a debutant settle as quickly as he did", Anderson said and added, "He looked very comfortable and very confident".
Priebus takes his turn on the Trump administration hot seat
Using profanities, the 53-year-old remarked that Priebus had attempted to stop him from being appointed to the White House. Tom Cotton R-Ark., said "John Kelly is a great American", before thanking Priebus "for his service to our country".
Reince Priebus out as White House Chief of Staff
Kelly's friends and former colleagues describe him as a consummate Marine - loyal to his commander, his mission and his troops. Priebus, the former Republican National Committee chair, has managed to hang on despite months of criticism on the job.
The NY Post claimed the pair left suicide notes pleading for their kids to be cared for, citing an unnamed law enforcement source. In the suicide note, the couple speaks of being in "financial peril" but begged that their children be taken care of.
According to the police report, obtained by TMZ , Repp has been following and harassing Kate for at least a year. Later in the year, he had again followed at an event held in Houston (Texas) before being stopped by the police.
The first face-to-face meeting between Trump and Putin, in Hamburg, Germany, earlier this month, failed to yield a breakthrough. Secretary of State Rex Tillerson hoped that there will be no need for these sanctions on Russian Federation .
Howling winds toppled motor scooters and hit people with flying glass, the Central Emergency Operations Centre said. Pingtung suffered the worst flooding as of Saturday night, with some 200 residents stranded and later rescued.
Detectives continue to appeal for information regarding the second rape in the vehicle on Wednesday morning. Anyone with any information can text 61016 or by calling 0800 40 50 40 quoting reference 65 of 26/07/2017.
Muller won their most recent meetings in the third round of the 2015 Australian Open and the round of 16 a year ago at Queen's. Isner, a three-time Atlanta champion, fired 13 aces to oust Slovakia's Lukas Lacko 7-5, 6-4.
England debutant Tom Westley's fifty saw the hosts remain in charge of the third Test against South Africa at The Oval on Sunday. But Bavuma was out soon afterwards, edging a good length Roland-Jones ball to wicket-keeper Jonny Bairstow .
President Donald Trump insists he's said all along that Congress should let the Affordable Care Act "implode", then replace it. Earlier Saturday, Trump threatened to end health care "bailouts" for insurers and lawmakers. "But please, enjoy this moment".
No matter where you are on the planet, you can see what channel the Real Madrid vs Barcelona match is available on here . And so, the two sides are expected to be involved in a fiercely competitive match. "Man City" defeated "Real" (4: 1).
Warmer highs will be found in the second half of the weekend in the low 80s and more humid conditions. For the last one in July, it will be very comfortable thanks to mild temperatures and low dew points.
Venezuelans are set to elect 545 members of the ANC, who will be tasked with debating amendments to the constitution. The most recent violence drove the death toll from almost four months of unrest above 100 Thursday, July 27.
Some rides reopening at OH fair after death
The Ohio Department of Agriculture said that 71 of the rides at the fair have been re-inspected and cleared to reopen after Gov. Bruce said fewer than half of the rides at the state fair are expected to begin running again Friday afternoon.
LG V30 Releasing on September 15 in South Korea and on Sept
A new report from AndroidAuthority indicates that LG might be in a hurry to kick off the sales of LG V30 earlier than we thought. Will the LG V30 look like the LG V20 and LG V10? Details pertaining to LG V30's release schedule have been revealed.
Dysfunctional Penis guiding Trump's White House
Both Priebus and Spicer were part of the Republican National Committee, and the bridge that linked the party to Trump. But Mr Priebus's ability to earn Mr Trump's trust and confidence ultimately outweighed any political concerns.
Russia Retaliates Over Sanctions And Orders US Diplomats To Leave
Lavrov and Tillerson "agreed to maintain contact on a range of bilateral issues", the Russian Foreign Ministry said in statement . It said in a series of tweets that pressure does not work with Russian Federation and that sanctions will not improve relations.
Philander discharged from hospital, cleared to play
Bowling: Anderson 13-6-25-3; Broad 15-5-44-1 (1nb); Roland-Jones 16.4-57-5; Stokes 7-1-26-1 (2nb); Root 2-0-5-0; Ali 5-1-9-0. James Anderson then removed Morne Morkel (17) to end South Africa's innings .
Cody Bellinger deives in two, Dodgers beat Giants 2-1
Nick Hundley was unavailable due to feeling a headache still from after getting a foul to the catchers mask in last nights game. The Giants made a change in their rotation and LHP Madison Bumgarner will start Sunday's series finale instead of Matt Cain .