Batsman Jonathan Trott and paceman Steven Finn step up from incremental contracts to full 12-month deals.
Ambrose's absence took the gloss off a fighting century from Jonathan Trott, who finished on 104.
Is it because of the presence of Kevin Pietersen and Jonathan Trott in the England team?
He had no control, bowled far too short and was regularly punished, by Cook and Jonathan Trott.
Chris Woakes weighed in with two wickets, while Neil Carter and Jonathan Trott collected a wicket each.
Jonathan Trott (67) also made a half-century for the visitors, who were eventually bowled out for 309.
But the Bears then successfully chased 176-6, winning with seven balls to spare thanks to Jonathan Trott's 46.
Jonathan Trott batted very well for his double century but this scratching around at the crease is worrying.
England added 69 to their overnight total as they were dismissed for 513, with Jonathan Trott unbeaten on 168.
But Jonathan Trott batted for almost four-and-a-half hours for 64 not out as he and Ian Bell steadied the innings.
Jonathan Trott top scored with 86 out of 167-7 as the Bears beat Lancashire by three wickets at Old Trafford.
He described the day as "interesting, not entertaining" after England closed 248 behind, with opener Jonathan Trott unbeaten on 64.
Johnson also picked up the wickets of Jonathan Trott, who registered his first duck in Test cricket, and Kevin Pietersen (36).
England batsman Jonathan Trott played down the incident, saying that Broad had "taken his punishment on the chin and moved on".
BBC: Injured Pakistan wicketkeeper Zulqarnain to return home
But, together with fellow Englishmen Tim Bresnan, Robert Key, Anthony McGrath, Monty Panesar, Mark Ramprakash and Jonathan Trott, he was not sold.
Yes Andrew Strauss, Ian Bell and Jonathan Trott have got big runs but in the latter pair's case at no great speed.
Watching Paul Collingwood and Jonathan Trott ambling in gave the appearance of England treading water while giving their front liners a break.
After Strauss was dismissed for 41, Davies and Jonathan Trott, who made 69, combined to guide England onwards in a positive manner.
Darren Maddy (73) made his highest Championship score since his century against Northants in April and Jonathan Trott grafted for an unbeaten 62.
Beginning the day on 43-2, Warwickshire immediately lost Jonathan Trott, who was lbw on the back foot to Simon Cook for a duck.
BBC: SPORT | Cricket | Counties | McLaren leaves Bears on back foot
Jonathan Trott's superb direct hit to dismiss Simon Katich in the first over of the match set the tone for a thoroughly clinical performance.
Jonathan Trott took evasive action at short leg but as he turned away the ball somehow dropped into the Bears fielder's right-hand trouser pocket.
However, Johnson and Harris, ably assisted by Ben Hilfenhaus, tore into the England top order, with only Jonathan Trott (31) providing an real resistance.
England began the day on 132-3 and looked to be heading towards defeat when nightwatchman Anderson and Jonathan Trott were out in the morning session.
Alastair Cook and Jonathan Trott both fell to the new ball and Andrew Strauss became Wayne Parnell's first Test victim before bad light halted play.
BBC: England on course for heavy defeat in Johannesburg Test
England hopefuls Ian Bell and Jonathan Trott both went cheaply after the Bears were left in deep trouble by quality fast bowling from Ryan Sidebottom.
Watson, dropped by Jonathan Trott at mid-on off Chris Tremlett at 48, continued to play the aggressor when out-of-form captain Michael Clarke came to the crease.
Joe Denly, making his one-day debut with Jonathan Trott and Adil Rashid, top-scored with 67 and Luke Wright hit two sixes, but England made only 203-9.
Opener Moore fended off a short ball to Devon Smith at second slip before Jonathan Trott drove at a wide delivery and was caught behind by Denesh Ramdin.
Taylor, who claimed five wickets to help bowl England out for 51 during the first Test at Sabina Park in February, then removed Stephen Moore and Jonathan Trott.
应用推荐